Hi, I am a 41 year old male and have had fever for a month followed by swelling in lower leg and pain. The fever went after a month and I was diagnised with un differenciated spondyloarthropathy. Now suddenly the fever is back and don't know why. I take sulfasalazine 1000mg twice a day and methotrexate once a week and dyclofenec 3 times due to pain. But for 2 days after taking dyclofenec i feel something is stuck in my throat and today it seems to have moved but i have some sweeling and pain on the right gland of my neck and pain, what coule this be