I have similar symptoms this year after getting Covid in 2022. The minute one thing goes away, something else creeps up. The swollen lymph nodes in my armpit and neck seem to come and go. I just had a mammogram, so no issues there. Now, I am dealing with worse IBS and joint pain lately. Just had a colonoscopy, endoscopy to rule out other issues, but it's annoying not knowing when there will be an explosion so to speak. It leaves you trapped at home. Before I got Covid at 54, I was riding my bicycle in the PNW for fun and my commute, 30-50 miles a week. My job had me walking 6-8 miles a day. I was in better shape than most teenagers. Now, I can only walk on dirt paths for any distance and can barely ride the bike a few flat miles to the store due to elbow/wrist/hand pain. Some of this was from RMI, but it was much worse after Covid. I am now a flabbalanche and everything I used to enjoy doing has slowly gone away. The doctors offer little help and just write you off as a whiny old lady. I only go for routine anymore because I get very tired of their patronizing attitude towards women over 50.