My wife is taking Wellbutrin and has started developing dizzy spells, and periods of feeling faint. We thought is was her medication which she has taken for a month and a half without issue. She went to the doctor and after a EKG she was told that it was not her medication, but a ST depression. She is being sent to a Cardiologist, but I am very concerned. What should I know about ST depression and should I be concerned? In the past she siad she has had times when her heart raced but she never told any one. Please help me know what we are dealing with!!!