Any connection between long COVID and tendinitis?

Posted by robindancer5678 @robindancer5678, Aug 6, 2025

Has anyone else had problems with their tendons after COVID? Background - I've had lots of weird symptoms since I had COVID and the boosters. Here's one I'm wondering about. I have had severe tendinitis for the past year in the peroneal tendons of both feet (those are the tendons on the side of your feet). COVID didn't cause it - this was due to me having extra bones in both feet (os peroneum) and not knowing it and doing excessive walking (miles). However - it's been a full year and I can't get rid of the tendinitis, even after surgery in one foot, lots of PT and now shockwave therapy, which WOW is very painful. I have great doctors from Hopkins. The surgeon suggests I may have developed neuropathy from the ongoing tendonitis. Now this is interesting because one of my weird long-COVID symptoms since 2023 has been nerve issues - intermittent burning, tingling, feeling like I am being electrocuted. I was worked up for fibromyalgia and small fiber polyneuropathy in 2023 and didn't meet the criteria fully for either, but was told my long-COVID is behaving like those two diagnoses. So - has anyone else experienced this?

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What type of doctor should I see? I have an appointment with a rheumatologist. It was made last year right after my initial visit with the rheumatologist. She ruled out autoimmune disorders then. Now, I have new symptoms with the ankle and shoulder pain. Not really sure if she’s who I should see.

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Celia 16th,
Keep the appointment. Who knows, she may have some new ideas. Nothing to lose, can't hurt to hear what she can offer.
Nobody knows all about this darn Covid. Its's all trial and error now. You should take every chance you get to hear from a doctor.
Good luck and blessings to you!

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Profile picture for annewoodmayo @annewoodmayo

Celia 16th,
Keep the appointment. Who knows, she may have some new ideas. Nothing to lose, can't hurt to hear what she can offer.
Nobody knows all about this darn Covid. Its's all trial and error now. You should take every chance you get to hear from a doctor.
Good luck and blessings to you!

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I appreciate your comments. I actually rescheduled my appointment for about a month away. So, hopefully my symptoms will be gone or more definitive. I also hope to have more labs by then.

It’s odd. Today at the gym, my knee was hurting and not my ankle! So bizarre.

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I had tendonitis in my hands & wrists years ago, due the type of work I did - wasn't awful tho. But the day after my 1st booster, I woke up & felt like my hand was broken - excruciating pain!! Also had MASSIVE swelling of both legs for months. that was in 2021 (had no problem with initial vaccine (both shots the Pfizer) now I still have to wear braces on both wrists every night or wake up in horrible pain, numbness decreased mobility. I have seen rheumatologists, hematologists, etc - had tons of bloodwork, no underlying autoimmune disease shows up or anything (thank goodness!) Did physical therapy for 2 yrs, do yoga everyday. Got Covid in 2023 & got tendonitis in shoulder & hip. Now I just got over the flu & tendonitis is back with a vengeance. So confused & discouraged. Thanks for letting me vent - helps to know I'm not alone. But I know this isn't a "club" any of us want to be a part of! good luck to everyone & hopefully we'll get answers as some point.

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I read the topic line and realized that I am not alone, once again. I had tendonitis as a child in my achilles tendon and actually tore it (not all the way through thank goodness) running track at the age of 12. I am not 55. I have noticed that I do have what feels like tendonitis in my feet again. I wondered if it was due to the Long COVID. When I first started this hell Long COVID journey in 2022, the doctors thought I had RA. I did not, but I do have issues with my feet now. Especially now that it is cold, I find that when I sit for a long period, I get up and my feet hurt. It is hard to describe. I do the stretch's I was taught so many years ago. This virus does affect the brain in ways that we do not understand yet. I say it boils down to inflammation. I have felt like crap for the last week or so. I went to visit my mom on Sunday and had a headache which carried over into yesterday. I finally broke down and took an 800 mg Ibuprofen. I try not to take those due to the fact that they are not good for the kidneys. So, my headache went away and I actually woke up today, feeling better than I have in over a week. So, I believe that the medicine gave my body a break from inflammation. I am grateful for that and that I feel ok today. I do not know how I will feel tomorrow so I am just going to remain in today.

Sorry, I got off topic. I do believe, from my own experience and hearing others, that this virus causes inflammation. I believe it causes neuropathy as well. This virus mimics so many other autoimmune diseases and the effects are still largely unknown, unfortunately. I do know that inflammation is not good. I got up this morning and took the trash out as it is trash day and I forgot. It was before the sun came up. It is 22 degrees outside. I felt not temperature. I know it is cold and I could feel that it was cold, however I was not cold in the sense of the way people feel temperature. Does that make sense? That and tinnitus are due to this virus and I believe that it some kind of nerve or central nervous system issue. Sorry to ramble. Hang in there. Do some stretches to help your tendons and muscles. Be careful and take it easy. Hang in there and thank you for sharing. It helps me and I believe it probably helps others as well.

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So, my situation seemed similar. Very painful tendinitis that started after virus. However, I was perimenopausal when it all kicked off. I believe that the two together made a perfect storm and started destroying my tendons. I saw 3 rheumatologists, 3 foot and ankle specialists and 3 GYNs. I finally was allowed to try HRT and it worked wonders in 3 weeks!
I am not cured but have gone from a pain level of 7-8 to a pain level of 3-4. Not perfect, but much improved and now can exercise and try to regain muscle and mobility.

Good luck!

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Tenosynovitis has been documented in Long COVID patients. This is inflammation of the fluid-filled sheath (called the synovium) that surrounds a tendon. The condition is thought to result from viral impact on tissues expressing ACE2 receptors, which are present in skeletal muscle and tendon cells.

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Yes, I have been having tendonitis and various muscle/ tendon pain and injuries from Long Covid too, among many other symptoms. Post exertional malaise, autonomic nervous system dysfunction with tachycardia with minimal movement kept me from doing any kind of exercise. Initially I could barely walk around at all. I eventually could do slow paced short walks but nothing else and noticed muscle wasting with fat gain. Eventually I began to be able to do more butI kept getting over use tendon pain with small activity snd muscle aches. Once when pulling on a car seat adjustment bar I heard a pop and suffered rib separation. Prolonged standing resulted in gluteal tendonitis. Diffuse muscle pain and tendon pain has been common,
The thing that has helped me most was going on the antiviral drug , valacyclovir that I ran across when taking it for a cold sore noticed that the two doses helped me feel better. I had been taking 1gm twice a day until a trial off for a little over a week when the gluteal tendonitis ( made sleeping impossible) occurred and a flare of fibromyalgia like diffuse muscle and tendon pain and maybe joint pain too came during the time off. Within a few hours of starting back with a 2 gm dose of Valacyclovir the gluteal pain vanished and muscles improved. Continuing with the anti viral. Also take fish oil, co Q10, and Nattokinase, Magnesium glycinate and vitamin D and C.

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