Im really not trying to be gross. but on my way home from work last night i felt like i was sitting on my cellphone and it was vibrating as if i was getting a call. i feel like twitching or like vibrating pulsations in my bumm. its been going on and off since last night and stops then goes then stops. its honestly annoying and i want it to stop. i keep reading things like hemorids or however you spell it. but i havent been pushing hard to poo and i havent had any anal bleeding. how do i know if this is normal or if this crap will stop.