I cope all day on mild painkillers but come night time, I wake 2-3 times and spend hal an hour either on loo or rolling round the floor waiting for the painkillers to kick in. Pain very severe and strong desire to go to the loo. Realise, probably pressing on bladder etc but why no attacks during daytime. Getting tired now!! Will this just happen at the time of my cycle (don't have periods as on cerozet) or will this be constant for next month or so until my gynae referral comes through?