Dear doctors last night at 2am I got up feeling very weak in legs and hands dry mouth no chills but body was cold feeling of restlessness had this feeling for about 30min then started feeling better after having lots of water n gluconD Again I had a similar feeling this evening before that I was hungry and after 40min I started feeling similar thing weakness shaky unexplained feeling in stomach then mild stomach burning after eating food started feeling better Please can u tell what this could be