Alternate Constipation & Dysentery. Less eating constipation is caused & Sufficient eating Dysentry caused?

When I eat less results in Constipation and When I eat sufficient Dysentry is caused. With dysentry some times blood comes from anus and sometimes it comes from lower intestine mixed with mucus or stool. Some time I feel pressure whole the day But Discharge is very less when in toilet or equivalent to nothing. Please help me.

It sounds like irritable bowel syndrome, where you alternate between having diarrhea and constipation, as well as pressure/pain in your lower abdomen. Check out this site:
http://www.webmd.com/ibs/default.htm Talk to your doctor though, just to be sure. Those are serious symptoms and you don't want to play around with them. There are medicines, diets, and exercise that helps they symptoms. Hope this helps.

you seem to have the symptoms of irritable bowel syndrome. You need to see your medical doctor as soon as possible and get an examination to find out exactly what is wrong in your intestinal system. This is not normal and can lead to severe dehydration. drink water mixed with mineral water 50/50 and drink more than you think you need. Your body is being depleted of all of its minerals and liquids.

Dysentery is a serious disease. You should go under diagnostic tests e.g stool exam,ultrasonography or colonoscopy.