Adaptive Equipment problems of the 2003 Chrysler Town & Country

First the dashboard lights went down to o I was going 65 mile per hour when the lights on the dashborad said 0 as if I didnot have gas in the car it said I was going 0 miles per hour when in fact I was going 65 with three children and too adult in the car all of a suttin the car starts operating again this went on for severial miles I was afraid for my life as well as the people who was in the car at the time a finally got home and then the car went dead.