Is it a hernia?

Hi, I’m in desperate need of help as I’ve been suffering with this problem for 5 years and now I’m just getting worse. I’m suffering from chronic lower left abdominal pain and with no exaggeration I’m pushing something which feels like a squishy lump back into my abdominal wall at least 10-15 times a day. Sometimes, I can’t get this “lump” to get back in and it’s stuck and it causes the most excruciating pain (worse than childbirth) that has on occasion caused me to pass out. My daughter has had to call the Medic to get me to the hospital on several occasions, I’ve suffered through the pain at home more times than I can count. These “attacks” as I call them typically last 2 hours or so. Here is the problem with my diagnosis, by the time I get to the emergency department and I’m seen by the Doctor and they do the CT scans and I’ve had many, the “lump” decides to unstick itself for lack of better terms and my pain immediately goes away and my CT scans, X-rays, ultrasounds always come back normal. I’ve had a colonoscopy, nothing found. I’ve been to GI doctors that just keep telling me that the CT scans are clear, ok so what is this small lump, mass or whatever you want to call it that I keep pushing back in? They dismiss it. I’ve been given every diagnosis under the sun but I’m still suffering. I think I have a hernia that becomes incarcerated or strangulated and causes these intense attacks. I’m just at my wits end. I can’t find a professional that will help me. Any advice would be so greatly appreciated! Thank you!