Started about 6 months ago wiith slight abdominal cramping that was enough to not want to eat. It would come and go never getting too severe. About 4 months ago, it began to occur more frequently but no lightheadedness. Flash forward to about 2.5 months ago, the lightheadedness began. It was sporadic, as well as the cramping. About 1.5 months ago, the lightheadedness became almost a daily thing as well as loss of appetite. Went to gastro Dr, gave me meds for acid reflux. Nothing. Went back and got another for antibiotics...almost done with them and I noticed the cramping is less, still with no desire for food. Bloodwork is fine, no blood in stool. I can almost deal with the loss of appetite by forcing myself to eat, but the lightheadedness is annoying. I'm a 58 yr old male, in great shape, no meds, or alcohol use. Have a colonoscopy sheduled, but what does that have to do with dizziness? I remember it got worse when I moved to a house with a well system, which I did, but rarely, drink without filtration. I did move for other reasons, but it persists.