I feel lightheaded, dizzy and weak through out the day. Over a month this feeling is constant . Occasionally I have this attack Of feeling unconscious and whole body feels numb and tingling which lasts for 20 to 30 mins . Feel little better after drinking water or salt-sugar intake . Have low blood pressure problem. This sudden attack problem is making me more restless and hampering daily routine . Should I get low sugar level tested?? Please help with the cause and remedy