He could be getting upset because of your flow. Some babies prefer the milk to come out faster and get VERY cranky when it doesnt. My first was like that, she wouldn't be fussy or hurt me(shes actually NEVER hurt me in the entire 17.5m nursing), but she would suck much harder and it wasnt too pleasant. My second chokes from fast flow and cries. So heres my advice, pull your hair up as often as possible to save yourself a headache and save your hair the damage. When he bites pull away and say ouch NO. Claws you can cut, I prefer to bite my babys nails until they're old enough to sit still with clippers. And screaming can be prevented by seeing if increasing your milk supply will help. Try drinking mothers milk tea. I brew one cup in the morning and drink it in the afternoon when its room temp, goes down easier like water

I think you need to nip that in the bud. Now. My son went through an aggressive phase and I had to break that real quick. Boy or not, he needs to know its not ok to hit, scratch etc.

Well he is a boy 🤷🏼‍♀️😂