1995 kj laser struggles when accelerating?

[zoidberg]

hey,
the last few days my laser sedan has been struggling when ive been driving. i thought it was just abit sluggish due to having the a/c on but i turned that on and continued to virtually bunny hop down the road, its not a manual either.
no matter how much i accelerate or ease off when it happens it will still struggle and has only been happening the last two days.
even when cruising down the freeway it can start to chug along out of nowhere then be fine for a stretch before happening.
any ideas on whats wrong would be greatly appreciated.

thanks