I'm off Lexapro (escitalopram) now for just over a week and the only side effect I experience is tiredness it's interfering with my day how long until this passes?
Not long. It depends on what dose you were taking, how long you were taking it, and what other medications you are taking. Try to stick to a regular schedule, get exercise, and you should be feeling better in the next 3-7 days.
May be related. Why did you stop were you instructed to do so the side effects may actually be discontinuation symptoms and perhaps you need to stay on that dose or at least consult your prescribing physician for advise.