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.
Lead and cadmium, both toxic metals, occur in tap water almost solely due to corrosion. Three other metals, usually found in high concentrations due to corrosion of piping systems are copper, iron, and zinc. Copper causes blue staining and imparts a metallic bitter taste.