i was bf and my milk wasnt enough for her so i supplemented with similac soy bc it wasnt milk based....she has done really good on it but lately she has been spitting up a lot more like to the point she will wake up with spit up all down her and in her hair...so im thinking it may be reflux...so im wondering if its the formula .....im nervous about switching or trying something else bc she has been on soy ....i have a can of similic early advance that they gave me at the hospital ...i just dont want to make her belly hurt....