2003 Odyssey Indicator Lights, No Power

While driving my Odyssey my TCS and engine lights as well as all of the door ajar indicators came on. The car still drove but seemed hesistant. I drove it home and parked it. The next day I drove it a few miles and all the lights stayed on. Ultimately the car stalled and I had AAA tow it back home. I was able to get a jump from my other vehicle so I could drive it into the garage but it doesn't hold much of a charge for very long (actually had to jump it twice to make itaround to the garage). Could it be the alternator or is this a sign of something worse?