... change is undesireable side effects from the lexapro. Anyways, I've been on the Wellbutrin by itself for about 1 week now and boy do I feel out of it. Not only do I feel drugged but, My anxiety has been bad, I can't focus, feel like I'm in a fog, I'm shaky inside which is really strange to me. I have a history of taking these AD for about 10 years. I've never had these sort of side effects going on to a new drug, just coming off.. Any advice or encouragment?