Not so funny, I experienced the same condition when my wife and I placed ourselves in the same situation. After 4 weeks of ed following the night at the club, I went to the doctor who, after getting the results of some blood tests, sent me to a sex psychologist. I can't say that the couple of sessions with the shrink did any harm, but if they did any good, the results were not visible either. Fortunately, after about 6 months or so, ed gradually started resolving itself and after a year, it had essentially resolved on its own. For what it's worth, the shrink felt that the intense stimulation caused by the visit to club resulted in some form of PTSD.
So, by perhaps giving it some time, your condition will like improve as well. Good luck!