Is it just my child???!! Sleep find us

Ok so my child has never been a great sleeper.

He just turned 16 months old. For the past month or so he wakes up so much at night. He has always woken up at least once but he seems like 4 or 5 times a night now. We are on 3rd week of ear infection and second antibiotic. He seems to be absolutely fine during the day. I give him Tylenol or ibuprofen before bedtime to help with teething pain and or ear pain. He does have a milk protein allergy so we started doing almond milk a month and a half ago.

He will sleep a couple hours and wake up crying and the only thing to settle him is a bottle. He also has night terrors occasionally. So with all this being said. Is my child the only ones who does this ?? Any tips for helping him sleep better ??? I’m at my wits end