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.
This type of taste in the mouth is sometimes the result of heavy metal toxicity. Particularly, mercury from silver amalgam fillings in the teeth, but it could be some other source of metal like lead, copper etc. New pipes in the house, an unknown source of lead etc., eating fish or food out of the can. Cookware.