im 28, male. i used to drink red bull all the time. then one day after a can i noticed i couldnt urinate properly for a few days, it would take a lot of effort to urinate and it would only come out in little squirts, this happened for about 4 days. so i stopped drinking it. so to test my theory i tried drinking it again a few months later, with the same reslut, then again i tested my theory a few months later with the same reslut again.. is there there any known side affects with red bull in men?