Sleeping again

I posted a week or so ago and out sleep is only getting worse. My son used to sleep 8-4/4:30 consistently. The past 3 weeks have been HORRIBLE. He wakes up at like 11:30 and then usually once more before the morning. I know waking up twice isn’t bad but when you’re used to great sleep it sucks. He eats the same amount of bottles he always has, and he’s started purées so he should be getting more calories. If I put more in his bottle he spits up so I don’t want to over feed him but mama is EXHAUSTED. I need help 😭.

P.s.- I don’t mind letting him cry it out. But this kid has my determination and will cry for HOURS. I’ve tried. And I can’t sleep if I know he’s crying so it doesn’t really help.