I sleep around 1am at night. I drink 4 litres of water during 24 hours period.
Almost daily I am having pain in lower abdomen the moment I wake up.
I wake up at Fajr with full bladder (sometimes wake up around 3 am as well) with pain in lower abdomen as if the bladder will burst. I pass urine and it gets better but the slight pain persists for a while. I drink water again as I feel thirsty with dry mouth and throat.
This problem happens more when I sleep in Air conditioned ON.
Is this pain normal? Or how can I avoid full bladder. Is my bladder so small it can't handle 200ml of water that I drink before sleeping?