4 month old sleep regression?

Chaya

Anybody else’s 4 month old waking up every 2 hours? I’m losing it. It’s 6am and I had to leave the house bc it takes me an hour to fall back asleep every time and he has been waking up every 2 hours for reasons I don’t know. I’m going insane out of my mind. I got maybe 45 mins of sleep last night and my husband slept through the whole thing. I feel like the lack of sleep is just causing major anxiety and all I need is ONE night of sleep 4 hours straight uninterrupted. I don’t feel human anymore :’(