I was prescribed 150mg of Wellbutrin XL. I was so pleased to find a medication that worked. It instantly hit me (though that rush subsided after a few days). I was feeling great for the first two weeks or so on it and now I'm back to being fairly depressed and experiencing suicidal thoughts. Should I just ask my doctor to up my dosage since it initially worked? I still think I feel better than I did when I was not on it but I didn't expect my depressive symptoms to resurface so soon. 