I have recently had a bout with food poisoning. Diarrhea, lethargy, no appetite, etc. It lasted about 2 weeks. Now I feal better and have an appetite, etc. But I now have a stool problem similar to constipation, but with some relief. The problem is I now have a pain in the lower left abdomen, probably caused by minimal bowel movements. Is this a problem that should be checked if it persists.?