its best to get checked out.. i have this too and my doctor thinks it related to carpul tunnel but mine didnt start until 39 weeks... and i made sure i had my blood pressure and weight checked...watch for swelling in your face as well.... but its best to get checked out to be safe
i would either ring your midwife or go to a & e nt sure about numbness but itchy hands/feet is somthing u need to get checked out so would think best bet is to get checked out