Thanks for the replies! I am better now, it was just a couple of days, I think greek yogurt did help, I will add it more to my regular diet from now on.
I dont think its pouchitis, or cuffitis now, maybe very mild pouchitis but I don't know if it just goes away by itself like this (?)
I think it may have been a bad combination of food and pain killers I had to take, and the blood was just from straining a bit and increased bathroom trips.