I Have Been Having Problems Since June. I Noticed That

I have been having problems since June. I noticed that my rings and watch were tight and eventually had my rings enlarged a full size. Then I started having intense joint pain in the feet knees and hip that lasted small weeks. I have been to rhemetology ortho and podiatry. All blood work come back normal in July. I have had two Lyme test both of which were negative. I had two spots of malignant melanoma that were successfully removed with MOHS. Chest xray was also clear. Then in September my left knee swelled to twice is size. I had left acl recon in'87. MRI showed a small tear but nothing else. Three weeks ago the area above my clavicle on both sides shows substantial swelling. The swelling does not get better with rest and is usually worse when I first get up in the morning. If I have an active day the selling moves down into my chest and back. Had more blood work only showing mild white cell elevation. The Dr started me on doxycline. I am tired all the time and have seen every doctor I can think of. I am scheduled for a cat scan with contrast to rule out SVC syndrome. My PCP is stumped and does not know what is causing all my symptoms.