What Causes Pins And Needles In Legs With Pain In Groin?

Hi my husband is 48 and fit ish, dives a lot. he has been complaining of pins and needles in his legs for prob 12 months now but doctor not concerned. its is always worse when he gets into bed and has more recently took to placing a pillow under his knees to feel comfortable. he is also complaining of pain is the groin area and the last few days is complaining of pains in his groin and right leg