This is not from the medication though.....it just happens when I lay down to go to bed and I was wondering if this could be caused by my anxiety or if there is something worse going on because it is to the point that as soon as I go to bed my bottom starts to tingle and the sensation of a very overpowering and uncomfortable arousal starts to occur...it is horrible to feel like this all of the time and I find it harder and harder to cope.