Yes, don't mean to worry you but what you describe is what I've been feeling since baby turned breech at 37.5 weeks on Friday. I also have some major pain/BHs for hours while baby tries to change position and fails. These to not feel like normal movements, just very strong cramps and pulling pains.
I can also feel a bony lump in the middle of my tummy at the top that I pointed out to the MW. She checked and so did her colleague but they couldn't be certain was a head until it was scanned. I suspect if it was my first it would have been missed until delivery
Phone the MW and ask them to arrange a scan ASAP, if they have to turn baby with an ECV it needs to be done now before baby gets to big or there is too little room/fluid.
They are trying to turn mine tomorrow
when baby turned breech at 37.5 weeks. What you describe is what I'm getting most of the time.