Hi Tinkerbelle, You poor thing!!! It sounds like you are having a rough time-Im really sorry to hear that. I agree with Linz words that, after not eating for soem time, your body literally freaks out when you put food and almost doesnt know how to handle it (sees it as foreign) and expels it!!!! Try introducing slowly as you are doing, and I do believe that even in a few days, your body will be able to handle/take in what you feed it.
Im really sorry to hear of your troubles!!!! You are doing a great job with trying to be gentle with your body, and BELIEVE ME, crying is good!!!! haha!!!