Post-srs, I had the catheter removed after a week or so. I cut out tea and coffee and only drank water leading up to the removal. Once it was out, peeing was normal and painless. So I can only assume that there must be some sort of infection, as it shouldn't be painful. Antibiotics will sort that out quickly. I made sure I drank lots of plain water to flush out bacteria that could cause an infection. But peeing was my main worry.