Pressure down there?

35 weeks pregnant,

Today I’ve had a looot of pressure down there as if I need a wee but when I went not much came out, when I wiped myself it hurt and the pressure was much more painful, i have shooting pains/burning feeling when I walk and sometimes it hurts to walk.

I had my urine tested a few days ago and there was ketones in it so they made me drink water and it was fine after that. Also the same day mine and baby’s heart rates were both high.

Yesterday my tummy was really tight on and off most of the day as well.

Any idea? I have a scan booked today I’m just wondering if this pressure is normal?