Hi Grover, Look I'm sure the bruising is something else entirely. You will really have to wait until you see a specialist. My hubby has Hashimotos disease and he gets wierd swelling of muscles occassionally, it has settled down now he has been put on a gout medication. I think gout and thyroid go hand in hand ?
I've had RA for a number of years and I swell on both sides so if a wrist swells on the right the one on the left follows, toe-toe, elbow-elbow...I'm like a mirror. But I don't bruise any easier than I did before my diagnosis.
Icing is good for swelling, so ice your fingers especially at night. Heat is good first thing in the morning, sort of gets me going. Like an oil to the joints. See if that helps at all. best wishes, golitho