I think I *did* have that back-of-the-tongue thing. Everything is more noticeable, of course. But you are now offically past my experience. All I can say with certainty is-- despite me breaking that (first)fast after 29 days, I did not enjoy the food; and it took at least two weeks to return to 'regular mode'; it was as if the body was not receptive, so, be assured that you are,most likely just where you need to be.
If I were where you are, I think I would be doing EFT--even just the tapping; and let the thinking go... It's enough to tune into what you are feeling--and as you can attest, you are *tuned in*.