Hypoglycemia can cause you to feel shaky, pass out, or even go into a coma. If you start to feel shaky, sweaty, or confused, your blood sugar may be too low. But the biggest danger of fasting if you have diabetes is that your blood sugar levels could go dangerously low (this is called hypoglycemia). https://mega-123.com/bbs/board.php?bo_table=free&wr_id=70997