Both my kids had symptoms like your describing, especially my first one. Stay with the Alimentum and maybe try soy. My dd can have it, my ds can't. He is only 8 mo old now, so he hasn't grown out of it, but she did just fine. They can have pretty much any food they want except for dairy, milk, yogurt, and cheese. We used goat milk when we needed to, Trader Joe's is great, and goat cheese when we needed cheese. She outgrew it by about 13-14 months and now has no restrictions at all. I am hoping her brother will do the same thing, but he can't have any soy formula. I haven't limited his solid foods at all, except the normal foods babies can't have yet, nuts, fish, etc. and of course dairy. He did fine with goat milk and likes it so we are on to cheese next. I wouldn't do an allergy test yet because what she can eat today will be different this time next year. Wait and see. Oh, and when we switched from formula to milk we did lactaid and it was ok. Good luck!