Hi, I have been following your journal. I atempted a thru-hike in 2000 at the age of 65. I also developed a stress fracture in my left tibia. My doc. told me I would be able to hike again in 6 weeks. My thoughts were just like yours. Couldn't wait to get back out and continue. Well it didn't happen. It was August before I could hike without pain.
I regrouped. I decided to get in better pre hike shape and start again the following April where I had got off the trail, Fontana Dam.
Started a new in 2001 from Fontana. It was not a thru-hike but I was back on the trail heading NOBO.
I finished the AT that year. I walked 2000 miles with no further injury.