😳worried

Okay I'm 37 weeks pregnant and my baby usually moves often throughout the day, she has her routine but tonight she's been very active, she won't settle at all, I'm very uncomfortable and my body is aching after my flu jab 2 days ago, is there something wrong? Why is she moving so much? Does this happen before labour or? I'm just panicking a bit! She's been head down for a while I hope she hasn't turned 😔