I miss sleep, I miss beditme being a breeze 😭

I don't know what is going on with my baby but we are one week 3 of not sleeping through the night and week 2 of fighting bedtime in general. First week he had an ear infection, fine. Second week I think he's got teeth coming in??? Okay fine. Third week, those damn teeth still aren't in and he naps no problem but will NOT go down for bed... After an hour long battle of him screaming and kicking hysterically and us trying gripe water and Advil , he will finally go down likely from pure exhaustion and then wake up 2 hours later and every two hours all. night. long. 😭😭😭 I just want someone to come tell me what's wrong, what's going on, and how to help him. Ive though maybe it's too much dairy, I've thought maybe it's teeth,. I've thought maybe he's just not tired, none of it seems to pan out and I'm just feeling so hopeless, defeated, and sad...sad he's hurting and I can't figure out what's wrong. Motherhood is so damn hard.