Why do I have pain in my hand and finger joints?

Hello doctor,

I am a 69-year-old male. I have suffered from many types of infections several times in my life from systemic candida infection, valley fever, fungus infections and so on. I also have RA, have experienced Reynauld's several times, I also have SLE and have tested positive for MCTD. I also have male boobs, wide hips and all around feminine shape. Three years ago, I had a mild myocardial infarction, veins are unobstructed, heart in good shape. I was on meds for about three years, to date no further coronary occurrences, no signs of heart problems. I am down to just aspirin and no additional meds. Currently, I have severe pain in my hand and finger joints and also, in the joints of my big toe on both feet.

Recently, I came down with some sort of cold that has turned into bronchitis with a pain on my right side. My doctor has put me on a five-day antibiotic plan again. I had a late start into puberty, started shaving at the age of 25, had small testicles. I worked out with weights for years and was never able to "muscle up". I have small bones, long fingers, long legs, short torso. I have never been tested for Klinefelter's syndrome but have been suggested by several doctors that I may have been born with this condition XXY but they seem to be reluctant to test for it. Is it possible that I am not being treated for the right cause of my illnesses? I am not sure what to do at this point, help.