Have been on Celexa 29 mg with few if any side effects for one week and seemed to do well for mild depression and anxiety(for which I take .5 mg of clonazepam 2x a day). Per MD orders I upped the dose of Celexa last night to 40mg. This AM, I woke up with high anxiety and nervousness, severe diarrhea, etc.. Any input on the effectiveness of a 20mg dose vs increasing it to 40mg