kb2yjx is right. It sounds like over stimulation. Look for body language. Airplane ears (ears go flat), pupils dilated. If she does bite you, that's when you put her down and say "NO!!!" very firmly. You can teach her not to bite. If you play with her, use a toy, do NOT use your hands as that will tell her it's acceptable behavior. She won't understand the difference, and it will confuse her.