No warning lights, I turned over passenger side airbag and disconnected radio

I have a 2003 sonoma pick up, Just recently, on occasion itll stall at stops. Itll restart immed, but then I gotta pop it in neutral at stop lights to keep it running, then, out of the blue itll run fine. This mornin it acted as if the battery was totally dead, but after a few tries it started and ran fine.