Didn't really get a biopsy done, since there's little point if the doctor doesn't know the diagnosis or treatment.
Of course I'm not really saying that I am 100% sure that I have it, but some of the symptoms almost fit perfectly and when the swell ups flare up they look almost exactly like in some of the pictures.
I'm planning on getting a biopsy done not too far ahead, but only after some stuff works out in life and, well, probably abroad as well.