Finally cohen outgrew his mspi they did blood work last week and it all came back negitive. so they told me to start him on soy milk. so far so good. he seems a little gassy at times but the doctor said that could be from the change. he no longer spits up at all. getting his 6th tooth and took his first step on monday. so its been pretty exciting. he has been grouchy from this tooth that just poked through so hopefully that will calm down. but he loves to eat everything in site. thanks for letting me share this news.