I had mine out when I was 21. The only time I’ve had worse gastric type pain was with a stomach flu bug that cramped me up and laid me out for a couple of days last year.
I'm old enough now to worry a bit, myself, with every unexplained pain. Kidney stones? Gall Bladder? Cancerous tumor? Heart problem? Oh, never mind; just gas/acid reflux/indigestion/etc; all better, till next time...