Yep, it all sounds par for the course. Both my babies always had an enormous aerobics session in there once I was laid on my side, I always reasoned that there was a bit more room for it then, and was a good opportunity for them to enjoy moving around a bit more.
Having said that it does make you feel despairing when you are desperate for some shut-eye. They do calm down after about half an hour or so if you can just lie and think nice thoughts until then.
First time round I found one of the long body-length pillows amazing and the only way I could get comfortable.Between the knees, under the bump, over your shoulder and arm, lie your head on top and bingo, lights out
This time round I'm having a bit more trouble, and my ribcage lies against the long pillow and feels too compressed, so I'm back to the one (flattish) pillow between the knees and under the bump. I roll off it in the night and wake up a lot, but I think that's part and parcel.
Good luck, it's miserable being trapped in a whale body that is still not roomy enough for everyone in it...