I too am a negative, but I was referred to my rheumy by my primary Dr., after I said that my fingers swelled up every night, and had since I was a teen. Luckily my rheumy diagnosed me on my symptoms alone. I think he calls me Seronegative Spondylarthropathy. I just had X-rays of my feet which showed a bone spur on each heel, which he said indicated that there has been inflammation there for some time. Weird, because while I have pain in plenty of other places, I've never had any heel pain. Just goes to show you how sneaky this disease is.

Psoriatic Arthritis since 2000. Failed Enbrel and Humira, now on Cimzia and methotrexate.