How to deal with body pain during meditation?

I am doing vipassana meditation as taught by Goenka. I get numbness and tingling in my feet from nerve pressure while sitting cross legged. I put up with it for quite a long time and then the sensation becomes so unpleasant I have to move. Do I have to get to a point where I can put up with quite severe discomfort in order to progress in meditation or can I progress even though I have to move. At the moment my choice to move feels like a damage to my progress.