Does anybody suffer Diarrhea/constipation at a set time? I seem to stay up late until 3am and can then spend 10 - 30 minutes in the toilet and find I only need a little. Plus I ocd over the toilet roll...

Sometimes if I get to sleep quick, or earlier I can get up next day and maybe need it but not need to go for a few hours later?

Is it another IBS thing? Can the anxiety be triggering the feeling of incompleteness? I've varied my diet slightly and it never helped too much..feel it's taking a tole on my life. Surely it's not normal for 30 mins glued to a toilet seat?