Itchy feet- NOT SWELLING

So for 2 days now I’ve had really itchy feet with no rash just constantly itchy. Anyway called maternity ward as you do and she said it’s just my feet swelling and to have a cold bath and it will help. That’s all.

Anyway I’m 37weeks and I can still wear the same sandals since before I was pregnant and the straps don’t leave marks like I’m definitely not having swelling feet cause my feet are just the same as they always were. But I’m booked into my GP to get better answers but wondering if anyone else had or had the same and why now with the last 3 weeks