You may have experienced serious acute stomachache from food that doesn’t agree with your stomach.
Following symptoms come along with acute stomachache: fever, cold sweat, difficult to breath, mid to low back pain that gets worse with lying down position, bloated, mild to severe migraines and more. when that happens, you can simply prick your index finger and thumb (where the vertical and horizontal lines from the nail – right side on left index and thumb, and left side on right index and thumb) with lancet that you can from any pharmarcy.
And let the blood out for a while. this will help you with all the symptoms, and if you don’t get better from it call your primary physician.