3 week old help

I cannot catch a break today 😓 my lo is acting like hes starving but keeps spitting up. Hes eating like every hour. I had him on my boob n once he fell asleep I put him down.. he wakes up and still acts hungry so I gave him a formula bottle. Got him to burp and he wont let me put him down. He keeps spitting up. & hes still squirming around acting like hes hungry.. taking his pacy like it's a boob then spits it out crying. Idk what to do??? I don't want to keep feeding him if hes just gonna be throwing up. & I think I'm dealing with mastitis I just need a break 😓