I am a new member as of today ...
I joined looking for answers as I just have been diagnosed with slippage this morning.
Yes, I had been experiencing abdominal pain in 2 locations:
middle thorax, pressure and difficulty breathing, and
yes pain lower left side below the rib cage.
But in my case I had other symptoms, like difficulty eating many types of solids and frequent Pb...
And recently, nothing would make it in, barely liquids ....
Hope this helps...