I also have the pressure and the pin pokes and it drives me CRAZY!!!!!!!
Especially at night, and then I get paranoid that what if there is something there and I fart and then it will come out.
I deal with it every night and a lot during the day.
Then, you can never pass gass when you feel safe and secure, but then you are afraid to just let go, then the pressure builds because you can't get to the bathroom right that second.
I take colcort and I swear it makes it worse. I tried the suppository things and they wouldn't stay in, would come right back out.
The only solution I have found is to stand against the wall, breath deep and relax. Then, after hopefully a few minutes I will fart and I can look to make sure it was just air, then I'll do better.
A lot of times, I have to pass gass to get that pressure pushing feeling to stop, but try to sit on the toilet and fart just makes it worse.