Hey Hi
I have been facing this problem since few months and I could explain in sime details.
Their is sudden lot of pain in my anus I dont but it comes so fast that it gives me like 100 volt shock in my anus. Usually it happens when I go and comes from loo. Suddenly it start paining alot and sometimes it last for few minutes( not usually).
I am scared if this is not a serious problem.
(Also note that I have a bad habit of sitting long time in loo so it may be also because of that)