There are that I know of quite a few things that can cause a tingly feeling. It could be everything from a pinched nerve, poor circulation, ect.. Need more specifics.. I'm thinking, it could be.. For lack of correct term, like a carpul tunnel of the leg.. I got it when I could lay on my arm, it was like a chill, tingly feeling.. and I realise I was pinching a veesel, so I stopped and it stopped... I'm not sure, though.. I don't think a tingly feeling is a good feeling.. Who knows.. Pay a visit to your doctor.