I'm having the same at the moment. I'm 34 weeks ish and it feels more like she's rolling over slowly with the odd stretch and aye, the jabs when they come, can hurt like hell!
I am 37wks and the movements are different now. They are slower and its more pushing vs before where they were quick jabs. I do get some jabs from time to time and those hurt bad!! As long as there is some movement things are good. For peace of mind you may just wanna talk to your dr about it.
The baby might have just run out of room. But tell your Dr.