My Left Foot All The Way To My Knee Has

my left foot all the way to my knee has been asleep since I woke up Sunday morning I can't bend it towards me the only thing I can do is move my toes a lil not all of them tho. I went to the hospital er and they Did a xray and ultrasound and said everything was fine and sent me home. my foot and calf won't wake up and its getting harder to walk and starting to ache and I get piercing pain up my leg especially when you touch back of my ankle. Ive been extremely tired and going through a lot of stress and anxiety any suggestions I what to do?