Hello PB, and welcome.
  I had my cruciate ligament detatch itself some years ago, and it takes a while to heal.... I was off two wheels for 6 months, so I sympathise.  Was told not to ride for longer, but what do them quacks know!  I remember when I turned up at a physio appointment with the new bike - she went totally fruitcake on me - it was quite funny 
 
  Might see you at popham one day, or maybe I'll venture down to poole quay sometime.  Do you join that meet? 
 nb