Gas pedal funny feeling

I was driving my truck today and all of a sudden i felt something weird on the gas pedal when i accelerated.
Pressing the gas is not smooth, it kind of feels like the gas pedal pushes against my foot a little.(dont know how to describe it)
I feel like something is loose somewhere.
It only happens when im in either 1st or 2nd and i accelerate.
Has anyone else experienced this? What do you guys think it is?

 

sell your truck now!!

 

It's not what you guys are thinking. LOL
It's not a stuck pedal.
It makes a little noise as if something is loose and you can also feel it in your feet.
Not sure how to describe it.
Im going to get it checked out by the dealership on monday but i just wanted to know if anyone was experiencing the same thing.

 

The problem is, is that this only happens in low gear. So if there were any debris than it would happen at all times, im guessing. But ill still check. Thanks for the advice. Anyone else?