Final answer:
Janice is experiencing mania, a distinct period of abnormally and persistently elevated mood. Some symptoms of mania include increased energy, impulsivity, and engaging in risky behaviors.
Step-by-step explanation:
Janice is experiencing mania.
Mania is a distinct period of abnormally and persistently elevated mood. Some symptoms of mania include increased energy, impulsivity, decreased need for sleep, and engaging in risky behaviors. In Janice's case, her excessive cleaning, excessive spending on a car she can't afford, and excessive digging up of her yard are all examples of impulsive and risky behaviors associated with a manic episode.