Not eating

We really need some help. Alex had been doing really well. We stopped oatmeal in bottle due to so much mucous type vomiting. When I stopped the oatmeal she got better. We went weeks with no throwing up and taking 20-24 oz a day (in 6 to 8 oz amounts at one time) with small amount of solids – very small amounts. She began refusing to eat over the last month. She did cut a front tooth and the one next to it is swollen but does not look like it it coming out any time soon. When I go to give her solids she clamps her mouth and turns her head. She has also stopped taking large amounts of forumla – she is down to 2 oz at a time. Now we are feeding her about every 1-2 hours during the day. She seems to have a little measuring cup in her stomach because she will push the bottle away at exactly 2 oz. She turned 11 months yesterday – which is adjusted to 8 months due to the prematurity, and weighs about 14.5 lbs – not growing much lately. OT has not been much help and the home health services we have does not have speech available. Does anyone have any suggestions????? I have given her a break over the last 2 days from solids because it has gotten so bad. She will put everything else in her mouth except for a food item. She will not even get it close to her lips. Someone please help