I have a burning sensation all through stomach area and under ribcage - sometimes gets worse after I eat. Have had ultrasound and CAT scan and found nothing. What could this be?

Maybe acid reflux.

I have acid reflux... sounds identical to your problem. Go to a gastro doc!

If you find that antacids don't work (like me), you should follow the Candida diet. No Lactose, no Gluten, no starches, just green vegetables and white chicken meat and non-oily fish (halibut, talapia, dover sole, or red snapper).

Then take Probiotics (also called flora) This will stop the burning. Use maximum doses of at least 50 billion cultures per pill 4-5 times daily (you can get probiotics in pill form - refrigerated at health stores). Do this for at least 3 - 6 months. I am on month 1 and things are getting better fast. No diagnosis for me either. My guess is a disfunction gall bladder or similar disease in other organs. The doctors will never find anything.