2001 Chrysler Sebring

Hi. I have a 2001 sebring lxi and just recently my car stalled a littled and shut off at a red light. It started right up and I didnt have any problems on the way home. However, now, sometimes when im on the freeway going at a good constant speed, it gives me a quick jerk and feels like its not getting any gas. I say that because its usually when im accelerating. I hoping its not transmission. What could this be and how much is the average cost to fix? Im currently on active duty and this would be the best time for me to buy a new vehicle so if its a lot of money to fix I may think about trading it in.