Tummy Ache Red Wine Sick Red-Eared Slider? =[?

Sick Red-Eared Slider? =[? - tummy ache red wine

I had my baby turtle since October 2008, lives in a tank of 10 gallons with a filter sunlight and heat sector. There are about two days, I put a portion of their foods to eat in her cage (dried baby shrimps or krill), and usually to ... But he began to vomit a few dishes that I fed the other night. I thought it was very strange and it may well have a stomach ache. But the next day was also done, which is a kind of open mouth under water and the throat, such as enlargement, but it only seems to happen when I try to feed him? I do not know what happened, and I'm really scared. It also seems to be shed or something, because some white sticky stuff comes from him .... Ideas? Thank you.