Stomach Ulcer?

Have any of you ladies experienced stomach ulcers before? I think I may have one, but I’m not positive. I’m too scared to go to my gastroenterologist as I’m terrified of endoscopies. What did you do to treat it? How were you diagnosed? Do they go away on their own eventually? My chest and stomach feel as though they’re on fire and I’m a bit bloated, but i feel relief for a little bit after a eat and after I take some antacids.

Thank you in advance