I started riding a recumbent last August and absolutely love it (my wife and I ride a Vision tandem (VR85)). This year after 900 miles I started experiencing a numbness in my left foot after pedaling 4 - 6 miles. My doctor believes I have a nerve pinch in my left buttocks, Has anyone experienced this and what measures have you taken? It is aggravating to have to get off the bike and walk for a few minutes every 5 miles or so. My typical rides are 40 - 60 miles and prior to these numbness episodes i would ride for 15 - 20 miles before taking a break. I would appreciate any advice that might help me. Thanks.