okay so i exclusively pump for my baby because she has problems latching. i started to get a little low and thought my supply was going out so i went and bought formula i’ve only fed her two bottle out of it, one last night and one just a minute ago. it was 3 ounces. she’s almost 4 weeks old. i sat her down so i could try to pump and as i was pumping she projectile spit up the formula. she’s NEVER done that with breastmilk. and she’s not sick, she doesn’t have a fever or anything. just out of no where. my question is, could she be “allergic” to the formula? i’ve already decided i’m not giving it to her again.