I have pain under my left lower rib cage...what could it be?

I had a ct. scan of my abdomen and pelvic area...I do have umbilical and hiatal hernias...and can attribute this pain starting with a lot of lifting. No findings on ct. scan...even had an endoscopy..had h pylori but after treated..still have this pain. some say it is a torn cartilage...cause I have a squishy sound when pressing in. Laying flat on my stomach makes it feel the best. Anyone else have this? What else could it be? Not knowing exactly what it is or a treatment for it, is causing a lot of anxiety.