Help me diagnose

@bbk186 doppler ultrasound is used to track blood flow.

I have the exact same thing. Horrible shin pain. Mostly when walking or standing. I’m 68 and otherwise in excellent health. Upper body I feel like I’m 20! Had 2 cortisone injections in my l4 l5 with no help. Had back surgery (laminectomy) for spinal stenosis. My surgeon was 90% confident that’s what was causing my shin pain. Four months later the pain is worse than ever. Had vascular ultrasoundI’m that was normal and emg where they noticed a slight issue. Not closer now in finding the cause than 2 years ago. Living with horrible daily pain. Taking lyrica 3 times a day. Doesn’t really help. Have an appointment for yet another back injection and an appointment with a neurologist in July. Must have told my story to 5 doctors.

My case is kind of similar. All started around one day one and half years ago I walked about 18000 steps in preparation for a house warming of a family member. Started with cramps and then slowly pains in the shin and foot areas. Unable to stand or walk after getting up in the morning after painful night in spite of Pregabalin . All possible tests came negative after seeing all possible specialists. Now I am seeing a podiatrist who ordered tests called ABI and TBI to test blood pressure in the ankle and in all the toes. Waiting for results. I totally understand your pain and frustration….

I still havent' been able to see a dr to get a diagnosis! So I'm needing to self-diagnose, hence looking forward to others' thoughts. Apparently a herniated disc can cause leg pain without back pain- but if I have that, why would body work partially(and temporarily) alleviate the pain?

Background and symptoms: I've been suffering from lower leg pain in both my legs (from knees to feet) for the past 4 years. The symptoms are mainly extreme pain, fatigue/ exhaustion with activities, and pins and needles and burning sensation most of the time, but no skin psoriasis, swelling, or other physical symptoms. This problem started all of a sudden after a long flight (approximately 8 hrs) on a plane where my seat was mechanically damaged, and I couldn't recline it; the guy in front of me reclined his seat entirely, so I didn't have any space to move my legs properly. I requested him, as well as the air hostess, to change my seat to no avail. The pain started after I got off the plane and increased exponentially as I walked through the airport. Since then, it's been a disaster. I don't have these symptoms anywhere else in my body, not even in my upper legs or anywhere else in my body. Before this flight, I never ever had this type of pain in my life.
Diagnosis so far: My initial treatment was done in the US. US healthcare is crap, but I didn't know until I got a first-hand experience. My dumb primary care provider put me on 200/400 mg Ibuprofen and then switched to acetaminophen of low strength despite my terrible symptoms. He didn't give me any stronger painkillers or local anesthesia despite my thousand requests; they just kept saying that it was an unusual pain throughout all our meetings. After 3 months, he realized that it's getting even worse so he thought it could be nerve issue so he gave me gabapentin and later switched to pregabalin which were also of very very low strength. Later, he told me to take only multivitamins as my reports (by that time, I had done blood tests, urine tests, an MRI of my lower legs and back, and CT angiogram of my legs) were ok. During this entire period, I consulted a few doctors of different specialties, but they said that as the reports are fine, we can't help you. Also, the wait time to schedule any test or appointment is extraordinarily long in the US and it definitely exacerbated my condition. That time my symptoms include-- achy pain, shooting and burning sensation. I couldn't stand for more than 30 minutes at all and couldn't walk for more than 15 minutes without terrible pain.
I came back to my native country after about a year as by that time I was told by my medical care team that I might be able to fly now and since then I consulted a few doctors of different specialties. My physical therapist suggested that the symptoms relate to arterial disease like intermittent claudication but, my test reports are normal. My Ultrasound says 30-40% blood flow reduction in the anterior and posterior tibial artery, but the Vascular surgeon said it's normal. I did the same tests in the US earlier, and the Vascular surgeon in the US said the same thing and also said that apart from the pain, nothing else matches with vascular problems, especially as I don't have any physical appearance similar to vascular disease. I was given Naftidrofuryl oxalate - a vasodilator for 2 months, which didn't abate the pain at all, so I believe it's not a vascular issue. I got all sorts of blood tests (HLA B27, RF factor, C reactive protein, CPK, lactate, uric acid, D-dimer, CBC test, almost any kind of blood test imaginable) and imaging tests(MRI, ultrasound, CT angiogram) done along with nerve tests (EMG and NCS). These tests have been done routinely and multiple times in different hospitals in 3 different countries, and the results are fine every time. The only tests I couldn't get done are called myositis metabolic panel and muscle biopsy because it's not available where I'm now. My neurologist also said that it's not a nerve issue. Recently, 2 ultrasounds were done by my Rheumatologist and he found just a slight inflammation in my calves but the other suggests that I have pretty good inflammation in my tendon and joint in my foot. My rheumatologist now says that it's peripheral spondylo arthritis. According to him, peripheral spondylo arthritis is observed through ultrasound or imaging tests rather than blood tests, hence nothing shows up in my blood tests reports. I asked him if it could be due to any infection but he denied that and said if it were due to any infection, then it would be found on a blood test by now. I know that ultrasound is a subjective thing that depends on the person who's performing it(technologist/doctor) but I'm just so confused and skeptical. I still have those symptoms- achy pain, burning sensation. Although sciatica is mostly found in one leg but I have these symptoms in both legs. I took pregabalin for 6 months, but it didn't help me at all. My EMG and NCS are also fine. My MRI which I got done here in my country suggested I have mild sacroilitis though the doctors said it's fine and not necessarily a dangerous sign as i don't have any symptoms and the latest one suggests I don't have any issue on my spine and si joints at all. I provided my previous report but the radiologist said even if there was any sacroilitis , it has resolved. I talked to him about Small fiber neuropathy and he said that muscle biopsy isn't done here in my country and isn't sure if it's what my case is.
I find it very weird that due to a bad flight, I developed arthritis/ sciatica/ neuropathy all on a sudden. Does anyone relate to my symptoms? Has anyone ever had a similar experience? I need some suggestions, please!

@sbelur any updates?

@bbk186 All negative and here I am 3 years later with unbearable pain in the early hours of mornings…