Prompt, please. At me sometimes (time in two weeks approximately) at once with...

[Alexey]

Prompt, please. At me sometimes (time in two weeks approximately) right after that as I descend or go " - big " rez and as though presses (is available in view of at once - in some seconds) in an anus. Passes or takes place usually in some minutes. Sometimes simply can arise, but not such strong. Prompt, please what is it such. To me 21 year.
Thanks in advance.

[Peresada I.V.]

Probably it is displays of an anal fissure, but for exact statement of the diagnosis survey is necessary.