One other thing B. Two tablespoons is a lot from anything ive ever read and in my experience of using ACV,(unless of course its diluted appropriately) and the result would bear out with your description of a chemical burn of the small intestine and the fluid being expressed to protect the intestinal tissue. Taking acids to assist digestion is often needed but it needs to be undestood from a GI tract perspective, so as not to provoke reactions like mentioned.
Peyers Patches have been mentioned by Cayce as having a element of importance in relation to neurology.
We use and have used castor oil packs to test this theory and for over 6 years a friend took orally one "teaspoon" of castor oil mixed with one heaping "tablespoon" of Dr Christophers cascara sagrada intestinal formula. Many found it unbelievable cause it does have a good dose of cayenne and golden seal ect and is pretty rough to take it that way, but people in need------- .
However at at the 5 to 6 yr point we had heard so much dissagreement about using C Sagrada regularly and how it depletes potasium he stopped and since the useage had been theraputic in that his eliminations had become quite predicable, he started trying other approaches when necessary.
So the castor o was for the GI tract elimination and also for healthier neurologic function by aiding the peyers patches. Since nothing negative had precipitated out of the protcol and nothing else was required in that time for brain actvity it was deemed to be a positive approach.
btw this same guy was on daily 36mg of hydergine in the late 80's for three years( and at lesser doses in the nineties when the med became more expensive) and at the first yearly visit after reaching 36mg, the neurology Dr was perplexed as to why the eeg showed a stabilzed pattern, cause the treatment hadnt been shared w the Dr and when he found out he blew it off as a fluke.