Pain in stomach when I eat, is it something serious?

Hello doctor. I have a pain in the middle of my stomach area. Gets worse after I eat and when I lye down. Pain also shoots back directly towards my back at that general area. Is it something serious. My sister also had the same problem and my grandmother too. Both had gallbladder problems. Do you think I may have the same problem. Thank you.

Age 46
Medications: naproxen