hi, 2 months ago a had diarrhea for a week, then it settled to a bit. Ever since i have had diarrhea, on odd occasians a cant pass a bowel movements,, i have not had a normal movement since. Also sometimes i get shooting pains in my head, reguarly feel sick and lethargic, this has stopped me going to the gym and interupts my daily activities,, i have had a blood test that came back normal and a stool sample. Please help,, i have no idea what to do and this has really brung me down.