... away by the second day. Now I have been dealing with chest pain. I called my doctor and she said that usually doesn't happen to people who take it. Like only 4% usually get that side effect. Today I took one dose 100mg and it feels alright. I am just wondering if anyone else has experienced this and if it went away with time? I really do feel like the Wellbutrin is starting to work so I don't want to stop taking it just yet