sxymxy16

Well, I was driving down the interstate one day, and only drove about a mile when the car started to make a noise, I cant really describe it, but I'm going to tell you what exactly happened. I was going about 70mph then I felt the car kind of struggle to keep up at that speed. Usually when I press the gas pedal, the car goes without a problem but now, whenever I'm at a stop I have to press the gas pedal far down in order for it to accelerate and for it to get a start. It seems that I have to press the gas pedal really far down to run then it slowly starts to speed up. Should I run the car like this? What could eb the problem?