Wow! Thanks SOOO much for the detail! Good luck and keep us posted!
My timeline is as follows:
Aug 1 - During the Chicago RnR half, searing pain in left shin at mile 7 required walking the rest, in pain but not nearly as bad as you describe.
Took all of Aug off exercising
Sept - ran sparingly, but likely too much distance when running (~10 miles a pop) Shin hurt but not awful.
Oct - started training again, shin hurt off and on. Taped, compression sleeves, and it was only okay, dull roar of a pain.
Nov 14th - did OBX half knowing that I shouldn't. Miles 10-13 hurt quite badly. Pain after the race was there but not awful... definitely knew something was wrong, though. Limped through the next few days.
Nov 17th - went to sports med doc. She xrayed and could see bone remodeling (likely from Aug injury), and based on symptoms and xray diagnosed stress fracture. She put me in an air cast that I am to wear at all times but showering, sleeping, or swimming until Dec 28th, and a walking boot that I am to wear if I have to walk more than desk to bathroom (I travel occasionally).
I am also to take calcium, and ice massage daily for 10-15 minutes at night.
I have completely rested it except daily activity. Starting this week, I am going to add swiming or pool running, and next weekend I can go back to ice hockey (which surprisingly enough is a no-impact exercise on the lower leg).
She was hopeful that I will be able to do the Princess,and is going to give me a rehab/training plan and some custom orthotics when I go back. Her feeling is that my extreme overpronation is at fault (my feet are so flat I would practically leave a complete footprint!).