Milk allergy?? Pictures in the comments

Nn

Ok so I had a posted a while back about my baby boy and his strange BMs he was breastfeed in the beginning but had to supplement also due to low supply I was able to get my supply up enough to feed baby and store a little at my 6 week check up I got the mini pill and it completely dried me up ,I had to use the breastmilk I stocked up to transition baby to formula then it all started on a Friday dec 27 he had no poops Saturday and Sunday he had 1 poop a day really loose monday the 30 he had his first shots he had a bm there at the drs office so she saw it and said it was ok on the jan 1 he had 2 poops still loose and then on Jan 2 his morning poop was loose but then his afternoon poop had blood in it.. took him to the er when I took his temp it was at 100 and the er said technically they don't consider it a fever that it could possibly be fissures so they sent us home...jan 4 I received goats milk formula in the mail so I gave it a try baby was no longer gassy his poop completely changed back to what it looked like when I was breastfeeding no smelly poop but still had a small spots of blood here and there on our appointment jan 7 our pediatrician decided that cause she had NO KNOWLEDGE about goats milk formula she scared the crap out of my husband by saying all kinds of negative about it even after admitting she had never heard about it, she switched him to nutramigen saying it could possibly be he developed milk allergy she checked bottom for possible fissures and then said she would see us in 2 weeks nothing else was said or done to baby not even a possible time frame of when there should be no more blood I feel like a terrible mom ugh!!...now I have baby boy only eating 1-2 oz at a time when he normally eats 3 -4oz and still having some blood in poop so I made an appointment with a different doctor... opinions sorry for the long post thanks for reading