Does anyone else experience pain like this?

36+4 pregnant.

I have been experiencing period like cramps for at least three days now whenever I lay down for bed at night. My nurse said these are normal braxton hicks.

This morning I have started a new symptom that I have a tough time putting into words..I get a tingling feeling and weird pain sometimes starting at my lower back..it goes down through the fronts of my thighes, tingling down through my legs and then I start to feel numb in my legs...like they're just going to give out on me. Meanwhile I sometimes have these with the tightening in my back/bottom and feel increased pressure/cramping in the lower abdomen..which feels like regular bh just a more tense version lol.

Does anyone know what could be causing the leg issue?

I take iron supplement already for being anemic while pregnant.

Tia ☺️❤️