Sed rate 30. cbc ok. urine ok. metabolic ok. ana+ speckled 1:640. serum protein ok. up back pain one year w/ right flank pain. could it be cancer? lupus panel neg. rheum drs dismissed me.

Multifactorial: You have numerous complaints without a major focus beyond back and right flank pain. The obvious question is how much of this is organic, in the sense that you have some primary medical illness, and how much is due to underlying psychological problems with somaticization. Suggest finding an excellent general internist and a clinical psychologist and following their leads.

ANAs not marker for: Anas not markers for cancer. Of course, any undefined pain could be ca, but at your age very unlikely. Your systemic lupus panel does exonerate you from likely connective tissue disease, and your other tests are ok, except for the esr. I would have my pcp get a crp. Esrs in my opinion should rarely be done. If CRP elevated, probably inflammation somewhere, the more likely cause for pain!

Unlikely: Unlikely, but a 2nd opinion might be helpful.