Generally when you complete the course of tuberculosis then we assume that this is cured. THERE are lest chances of developing strictures in small bowel. Check your diet. Some natural way to tackle with hard stool / Constipation are-Take DABUR  NATURE CARE ISABGOL HUSK- one big teaspoon in one glass of Luke warm water after breakfast and one after dinner daily for 1 month.  Take plenty of fluids , salads in each diet. Get Flax seeds, fry it in a pan without oil, then put it in a mixi, make powder and you can take 1 teaspoon with jaggery morning and night after meal