@kangaSue or anybody else
I've read everybody's comments, thank you, just thinking out loud here....
Could constant or near-constant gut tension contribute to or cause a failure for the stomach to relax, thus creating favorable conditions for gastroparesis?
You mentioned nitrates relaxing the pyloric sphincter, or maybe the stomach muscles... and considering that I hold all of my tension in my gut...
Note: I meditate and practice mindfulness throughout the day in order to combat this stress or tension. But I easily slip back into this mode when I'm not paying attention or get lost in thought.
Basically, it's a behind-the-scenes tension I'm not aware of unless my mind is quiet.
@Howard, your theory of gut tension makes sense to me, in the presence of another condition, or more, which are stopping things from going where they should.
I don't know enough to search for clues, though.
You posted something about some places inside that are perhaps not sensing that there is liquid there, that needs to be moved along.
Do you notice that in any other way, perhaps not connected to food, liquid, digestion, etc.?
I'm wondering about how neuropathy works (if there is any consistency to it).
For example, with diabetics, there is often a loss of sensation at the end of the big toe, on the medial corner of the end. A dull pressure is often not felt. Increase the pressure, and the rest of the toe feels it, so the person can say "Yes, I feel that." Or a sharp pressure, such as the teeth of a comb, is more easily felt. Merely touching that part of the end of the toe with a finger, and the person might not feel the touch at all.
Or when testing the ends of all the toes, the person cannot easily distinguish each of the toe ends.
Don't know if that gives you an idea.
I am sending you smiles and all best thoughts.
God bless you in every way.