Hi 78! I'm with you - in age as well as GI, joint and exhaustion symptoms. I've had Long Covid for 16 months and only recently started to feel slight but significant improvement. I attribute it to undergoing extensive ( and expensive) specialized lab testing (thru Genova Diagnostics) which showed that my issues were gut symbiosis, mitochondria deficiency, and the spike protein. Working with a Functional Medicine practitioner, I have been taking supplements to address the deficiencies that led to these issues. She said these are common issues in Long Covid. I encourage you to find an experienced FM practitioner. Best wishes!