Well.........I am (was) a physician. Retired 2 years ago. I have passed all my annual physical exams ( except for an enlarged prostate). My blood tests are all normal except for cholesterol elevation for which I take a statin. I am physically active and the episodes I describe only occur after cycling for certain distances. So....that is why I was asking other cyclists and ..........
I probably should have included the above info on my post
( rodé 20 this morning , drinking G2 and had some protein afterwards and it did not happen. But......it is at 30+ miles it happens so we will see this weekend)