I am a 31 female and i have had retal bleeding for awhile now and i have been to the doctors about it and, they say that i don't have hemrroids and also i have been losing weight, i want to know if taking to much tylenlo if that would cause it the bleeding is not constant it comes and goes i seem to have it mostly at night time and it is mixed sometimes with the stool and most of the time it is not mixed what should i do about this