What am I feeling?

I’ve had a relatively pain free pregnancy. But in the past two days I’ve had extreme cramping pain that lasts for about 4 hours each night. Its been in my lower back, lower pelvic region (under belly button) and high up on the top of my bump (under boobs), and usually the pain is all of those places cramping at the same time. Almost to the point I struggle to move, and they won’t go away with movement or rest.

I’ll get that pain during the day on and off too I’m the past two days but it’s nothing consistent.

I’ve also had extreme indigestion, gassy and pretty much diarrhoea. I know the baby has dropped because the doctor did an ultrasound and was surprised about how low down her head actually is. And he expected she might come earlier than expected. I do get a few pains down there too (I think it’s called lightening).

Also had leaky boobs the past two days as well.

My question is... could labor be coming soon? Or are these just normal aches/pains/symptoms of later pregnancy