Just wanted to say that I DID eliminate the oil and lecithin from my diet even though I know it's not supposed to cause any issues. I have yet to add them back. (she showed trace positive to soy allergy, so we are waiting for a couple of months).
Regarding the food aversion. Actually that can be a possibility. The way it was explained to me was that they begin to associate eating with pain

very early on. My DD started not wanting to BF for very long and it was so frustrating, but that made sense. The good news is that they relearn very quickly - as soon as she started feeling better she was pigging out again

It could be something different, just know that there is a school of thought about that.
Good luck and big (((hugs))).
