To find out if it is fully charged or not, unlock your iPod and look at the bar a the top when it is charging. Then look at the battery at the top right hand corner of the iPod screen.
Bleeding Gums Stress can cause a reaction from bacteria inside of your mouth that make your gums bleed. Blood happens to tastes like metal, and can be tasted even if the amount of blood is barely perceptible. It's possible that during anxiety attacks and stress, you're experiencing a minor gum bleed.
Multivitamins and prenatal vitamins with high amounts of heavy metals such as zinc, copper or chromium will cause a bitter taste in mouth. Calcium and iron supplements have the same effect. The taste disappears after the supplements and vitamins are absorbed in your body. The taste might persist if you overdose.