have lower left quadrant pain, tender to touch and have
mucus in stool, rebound pain, hurts the belly to eat
This could be related to inflammatory bowel disease as well as other conditions that may affect the gut, particularly the colon. Lower gut symptoms may arise with eating either as a result of distension of the stomach pressing against the colon or reflexes that stimulate colon movement during and after eating (like the gastrocolic reflex). Of course the entire gut should be investigated as the pain during eating may be due to upper GI pathology while the LLQ tenderness and mucus in the stool is more likely due to lower GI pathology. It is possible that these are unrelated. Your doctor will be able to advise you further.