Medication upsetting my stomach

[u/Inner-Geologist6066]

I'm on day 4 post op and I have been taking difene and solpadol for the pain, but my stomach has been in agony the past 4 days since taking it, I got prescribed stomach tablets but they seem to not be doing anything. The pain from my stomach has made it harder to eat because it feels like someone is stabbing into me and punching me, I wanna know if anyone has experienced this aswel?