I need help

I (27F) have been diagnosed with chronic abdominal pain in October. It's been five years since the pain started, I've had many different tests and even hiatus hernia surgery to understand what's causing the pain. Finally I got referred to a private clinic and they said it is chronic abdominal pain, they aren't sure if its the wall lining of my stomach, or if it's deep muscular. I am really struggling to come to terms with this, it's not something that can be taken out and the pain is gone, I could potentially live my life on nerve pain medications to try and control it. I had a nerve blocker injection in my stomach a month ago and the pain on my right side has eased, but the pain across my chest and diaphragm is even worse. I have two step kids and I can't go play football in the park with them or play without worrying I'd be in agony the next two days. I can't go out drinking with my friends without wondering if two simple drinks will cause me so much pain I feel like I can't breathe. Even if I'm an hour late taking my pregablin (I'm on two per day) I'm in pain for the rest of the day.

It's not something I can explain easily to someone who doesn't know how much pain I can be in, even on good days it's there a dull ache. I am mentally, emotionally, physically exhausted of feeling like my life's been stolen by something that isn't even visible. I just need to know if someone else has experienced this and can offer advice.