Not sure if you’ll see this since it’s been months since last post, but I wanted to say thank you for posting this. I am going through a very similar situation and this has helped me to not feel so alone. Strangely, I also developed the symptoms after getting sick 4 times in less than two months… and I have a 14 month old. There is something about adults getting sick from the viruses that our children contract that seems to be a common thread here! Tingling, burning, hot/cold, muscle spasms. Worse when at rest. Moves around between left arm, left leg, and right leg. Tests all came back normal except for slightly elevated ANA, but that’s unrelated since I have had iritis on and off since childhood. Anxiety has been through the roof since having a baby and not getting sufficient sleep (she is a poor sleeper.) Managing with supplements, herbs, good diet, cutting back on alcohol, mindfulness, therapy, and nervous system regulation tools. I’m not a medical professional but my dad was ER doc for 30+ years, mom is PA, step mom is RN, grandma was nurse as well. Maybe that’s where my health anxiety comes from. I easily panic when it comes to internal signals and think I’m going to die. Been a struggle since late teens!