Is it normal to experience the feeling that my left knee and calf are about to go numb while on my period? I am 34, just Got off the pill three weeks ago, and am having the first period that I have had in 5 years. I am not cramping too badly , and things seem to be normal, but my left leg feels heavy and like it is about to get pin and needles . This is the 4th day of this. No other symptoms and no leg pain.