I have never had an offical PB. The thowing up thing is what happens to me. I swallow something that feels to big, I can feel it not go down then, it comes back up. I would say within 5-10 minutes I am throwing up. The food & slime comes ups. I admit, I am used to doing this now & sometimes if I can't get it out the first time & have to thow up again. This is such a bad habit to be in & I am very concious of it when I am eating. But I have not learned...yet...that bread is something I cannot eat! Glad to know I am not the only one who has this problem!!! Thanks!