I am 25 yrs male. since 2 weeks I am having sex after long time, before that I spank the monkey but very infrequently, problem is with urination, it has started to come 5 min.....10 min after urination. Urination is not done completely and half part stops and comes after 5-10 min. Can someone tell me what is this? Is this a serious issue? or normal thing?