I am on several different medications for severe nerve pain in my arm... vicodin, gabapentin, elavil, flexeril, and tramadol. I just finished a round of antibiotics and prednizone as well. I have horrible swelling in my feet, ankles and low legs, as well as tightness and pain about my upper belly. I am wondering if anyone can tell me if one or more of these medications could be causing this severe reaction with swelling and tightness?