I am waking up middle of night from 3 days due to numbness and tingling on left hand and left leg and also head feels dizzy and once I wake up tingling and numbness reduces. but again once I sleep I again wake up with same issue. I got checked by neurologist but no proper diagnosis. Also got checked using nerve conduction and enmg for legs which came out normal. Also blood pressure is in normal range. Can someone suggest how to diagnose.