foot pain and numbness when i wake up and try to walk?

[Angie B]

its hard to describe like walking on warm glass or marbles and its only when i wake up in the mornings after about 5 mins it goes away i went to the doctor and they took 6 vials of blood to test for several things iim still waiting for the results Heres my background..i'm 22 just had a baby 6 months ago this problem started a little after the birth of the baby....i weigh 110 pounds and im 5'7" ..........doctor said its not curculation..... when i first wake up my feet feel like they did when i had the epiderual kinda numb but i can still feel them and move them...then when i try to walk it hurts like glass is pushing into my skin hot glass a tingly feeling only on the bottom of my feet and it hurts alot but then it goes away and the only way i can get it to go away is to put pressure of walking on my feet IT HURTS any ideas on what it could be so i can talk to my doctor about possible causes? also my left knee and leg has alot of pain off and on and my right wrist
also lately i find myself craving salty foods and sugary foods and i forget to pee i dont have a full sentation in my bladder when i gotta go i usually have been pissin 3-4 times a day
and i know this doesn't sound cute but i have to poop really bad when i wake up lol
ummmm and im still breastfeeding my baby i have yet to get a period
*tingley sinsation on the bottoms of my feet
not sleeping with my legs crossed or nothing i actually wake up "spread eagle" on my back lol