Waking up every hour???

Soooo the past few nights I’ve been waking up every hour on the hour. 12,1,2,3,4,5,6 and then I have to get up anyway. It’s making me extremely tired and I can’t concentrate and I’ve gotten quite weak and I think it’s because I’ve been waking up like that. Another reason is that around a week ago, I had an anxiety attack while I was asleep, I dunno why though. But it kinda started happening after that...

Anyone have any ideas of why that’s happening?

Cheers