Many docs don't do a full battery when differentaatng hypothyroid from Hashmto's thyroditis. Check the test fndings against an onlne search for differenttng tests for anti-thyroid antibodies. Two entrely dfferent illnesses. If t s Hasghis that was trggered by Covid, the usual tests may nop reveal same. Make sure, because you don't wat to miss thid diagnosis. Mine was missed for 20 years, whle I searched in vain for answers to multiple docs. Usually assocated with some food insensitivities. Hope you are right, but please exclude Hashimoto's. Also check out possible Epstein Barr virus activation as cause for ong Covivid. Thousands of sufferers are dealing with this complication. A resource is a research support group focessed on EBV sufferer, many of whom are long Covd people whe have developed a series of protocols that help with symptoms, sharing wth each other the protocols, and with excellent support and empathy. Name of group, Stuff that Heals. Most group members experenced symptoms after Covid or consequent to one of the COVID vaccines. I hope ou find healing and renewed energy soon. All the best.