Super weird night with fast heart rate

32+2 with borderline high BP, going every week for growth scans just in case. Last night I woke up with my heart racing and an feeling super anxious. After a few hours I got back to sleep but periodically woke up with my heart rate all crazy. Finally at 7am I checked my bp and it was up at 130-135/80 so I called l&d and they said it wasn't in the red zone of 140/90 so I didn't have to come in, but I could if I wanted. My morning BP is normally quite normal (110s/60s-70s).They said it sounded like an anxiety attack. A 5 hour one apparently. So I'm trying to relax and see if it improves. This sucks. I feel supremely awful. I'm still debating on whether or not to do in. Baby has been disco all night, so at least that.