Cally is right. Painkillers can make you very constipated. I would think this is the reason why things are happening the way they are. Increase your fibre intake, water etc and if need be, add some benifibre to your food and drink to help you out. If you are constipated, there can be abit of blood when and after you wipe ( TMI too.. i had quite a bleedy bum last pregnancy). I could imagine you are extreamly flat out at the moment too so dont forget to eat and drink.

I wouldnt be racing off to the docs but definantly (sp?) give it a mention next week.