PF in left foot

 I was playing tennis the other day and went for a ball, I heard and felt a ripping in my left calf.  My hubby had to help me off the court.  I am now able to walk, but there is still pain, but no swelling or bruising.  The strange thing is, my left foot is no longer hurting.  I work at a grocery store so I'm on my feet 8 hrs a day.  I can honestly say this is the first time in years that my feet have not hurt(had pf surgery 2yrs ago on right foot).  Has anybody ever heard of this happening?