I'm,not sure where this post belongs, but I need help!

DD is 8.5 months and this past week has been a terrible sleeper. She used to sleep from 6 pm to 6 am with one night waking. But, this past week she's only slept in her crib 1 night

She'll start off ok, go down easy, but then scream like crazy about an hour later. Whenever I pick her up she almost always has a toot or burp. It almost seems like she's uncomfortable laying down bc when I hold her in my lap she's fine and goes back to sleep.

We haven't changed anything food wise, so i don't know what the issue is. Could she have some kind of reflux?

I should add, she had an ear infection this week, so that might be throwing things off too.

Do we just wait it out?