Whats wrong with my car!!!

ok so yesterday i was pulling into a gas station when i noticed my heat was coming out in i dunno like bursts, the headlights flickering and the car like puttering, then the car just died! when i started it again, it started up but would do the same thing UNLESS i was accelerating. If i let off the gas it would start putting and the heat and lights act funny then its gone. i've looked in the stupid manuel for my car and it's like reading chinese. :banghead: does anybody know what's wrong? :banghead:

ps. when i got my oil changed..um bout a month ago they looked at the alternator and said it was totally fine.

it would help if you told us what kind of car you had...

ps. when i got my oil changed..um bout a month ago they looked at the alternator and said it was totally fine.
That sounds like the free-inspection "check" I do for people to.

them: "could you look at my alternator?"
Me: "Sure....one sec....yup, its still there!"

:D

Or the check engine light free check. "I checked the engine, its still there"