Q: Car acts like I hit the brakes when I first hit gas

This used to happen a little, but it's happening more frequently now. When I first begin rolling forward and press on the accelerator, the car acts like I slammed on the brakes. If I ease up on the gas, the vehicle will then usually accelerate with no problems. If I come to a stop and then try to get rolling again, it acts like I hit the brake again. I haven't noticed any slipping or abnormally high RPMs. The check engine light came on recently while I was having the issue. Plugs have been changed. What else would cause this issue?