Renault Megane car was lurching intermittently

I had been driving for quite a few minutes, when the car starting lurching intermittently. I think I was in third gear and because the car slowed down so much, I had to change down through the gears. I'm not sure if it was my fault but the car stalled every time I got it into first gear. This happened four or five times over about ten minutes. I then stopped and parked up for a while and left it alone for a few minutes. I then drove it again for a couple of minutes, parked it up again. Sometime later I drove it again and their was no problems. Some years ago I had a similar problem where it turned out to be some rubbish in the fuel line, I was wondering that it might be the same thing?