My friend isnt answering her calls. Im worried

She called me really early in the morning and did not see the call until I woke up. Shes always answered on the first call and ive called her almost 15 times so now im worried. Ive called her family members as well, and none of them are answer. In addition to that she has alot going on at home so that increases my worries. I plan to drive to her house today, but im worried cause im a minor and so is she. What do I do.