Thanks for writing in.
Given your symptoms, I would thing that these lumps are enlarged lymph
nodes. Lymph nodes frequently enlarge in response to infection, which I think is what we are looking at here. Given that you are receiving Imuran
and CellCept ( these drugs suppress the immune system), you would be even more susceptible to infections.
I would suggest you see a physician and we should be starting with a blood culture
to find out the cause of the infection. We would also need additional investigations like a chest Xray, urine examination and probably a CT scan
Hope this helps.