Dieter symptoms and conditions

Been on welbutrin (bupropion) 150mg sr for 4 years. I quit smoking after about 6 months the taste of cigs were nasty. I lost 30 pounds but also started my workout at curves. I have had neck pain for about a year now and I am wondering if this is a side effect of the welbutrin. Went to a specialist at a university orthopedic and nothing is wrong with my neck but the muscles in the back of my neck hurt constantly. Also has anyone ever tried the super dieters tea while on welbutrin. Overall I have had no side effects with welbutrin everyone is different though.