No sleep & PPD

My sons sleeping habits have made a turn for the worse.

He has been up since 1140 pm and it is now 124 am and I’ve fed him and gave him some Tylenol bc he would not go to sleep and kept crying off and on. He usually sleeps in his crib but tonight we were so desperate (he’s been sleeping like shit since January) that we put him in our bed.

He is still not asleep. So back to his room he went.

I know there’s a regression but I almost feel like my son is broken. There HAS to be something wrong with him. He’ll probably fall asleep soon but come 4 am he’ll be at it again for another two hours

I CANNOT do this. I don’t know how you other moms do it but I cannot function when I am up for 4 hours at night, I feel my PPD creeping back up because I’m having thoughts of hurting my son , same feelings I had when he was first born.