Food Allergies Treatment

My daughter is a month old i breastfeed for the first two weeks and i couldn’t do it anymore she sucked blood blisters on my nipples and cracked them. I tried pumping, lactation consultants, everything plus my milk seems to make her miserable i switched her to formula and started putting cereal in her bottles per doctor to make it thicker in her stomach because she spits up a lot she is always fussy, gassy, does this sound like a milk allergy to you? My question is when i feed her bottles she can suck on them for almost an hour and not get anywhere sometimes and other times have no problems? i sqeeze the nipple and milk comes out i even sucked on it myself and it comes out i thought cereal was clogging it and i even thought the nipples were bad then it was all of them. Does this sound like tongue tie and does it sound like milk allergy would soy help?