last night i was woke up several times with my left leg just throbbing, couldn't get it comfortable at all, ended up putting pillows under my knee just to get some relife, but by laying on my back, my lower back started hurting pretty bad, also the tips of my toes will start feeling as if their on fire sorta, the my foot will go numb and at the same time thats going on, i have sharp almost electric feeling pains pulsing threw my thigh from my knee up, this has gotten to be a bit much and i'm thinking of going to the er this morning to get some relife, i'm just wondering if anyone else ever experiance this, and what could it be maybe?