I have been having trouble going to the bathroom for about 6 months now. I have a pretty good diet no milk products and not much fatty foods drink lots of water. Problem is i might so to the bathroom once in 2or3 days most of the time I feel bloated and constipated. My rectal area is itchy and there is a stinging sensation. I told my doctor and he said that try more fiber and he told me to get an over the counter digestive cleaning drink Citric acid and that helped for a week but then just like a stopped up pipe it happened again. I feel tired all the time no energy moody and i feel in pain most of the time on my sides and in my lower back what do you think could be the cause and what should i do about it?