I started my period three days ago. It is so light that there is barely any bleeding. I'm feeling extremely sick and flu like from it, and it's driving me crazy. Im having diareah, dizzyness, feeling zoned out, extreme muscle pain and weakness, etc. I am a virgin so I'm pretty sure I am not pregnant. I recently went through a tragic loss and this is only my second period since then- could stress be causing all of this? I am also 16, if that means anything. Thank you for any replies.