As discussed, we decided we needed to get my knee checked out as I was effectively unable to go uphill or downhill without pain - flat is more or less OK!! Had a very pleasant doctor at the Kerikeri Medical Centre check it out. The first thing he said was that I had a very loose medial ligament on my right knee ("marked medial laxity" on the medical notes!!). I think this was probably from significant knee damage 20+ years ago.
Net result was that the lower rightleg can bend outwards when it should stay straight - this led to pinching of the synovial membrane in the outer knee joint --> sharp pain! So, nothing serious, but I need to get the swelling down, work on exercises to bulk up my right quad to help with stability, and get a brace for now to help maintain stability. Not sure how long that will take but I'm hopeful it will be ready to go in the near future. In the meantime we plan a few shorter, flatter section of the TA around here (Waitangi through to Opua) while in recovery mode. Already did a 3km walk this morning on part of the rail trail from Opua.
So - R&R for now - am hoping to be back on deck with some more stories in the near future. Thanks for all the supportive comments - its only a minor hiccup as far as we are concerned and our journey will continue!!
Belinda and Anthony (aka Tony) Hadfield made a decision, in their late 50's, to do something a "bit different" and walk New Zealand's 3000km Te Araroa Trail over summer 2015/16 - although updates will now tell you that this plan will take longer now!!. As the old saying goes - "don't leave home 'til you've seen the country"!!