The first time wasn't a complete fracture either. I don't know if I was ever given information about the cortex or how deep the fracture was. It definitely was only a stress fracture, and I did get it early enough that it didn't develop into a hairline fracture or break. It just says mild stress fracture of proximal femoral shaft. It was just below the greater trochanter. I probably ran on pain for 2 weeks, thinking that it was a hip flexor strain or something, before finally talking to someone who suggest that I get checked for stress fracture.
Talk to the orthopedist and find out what you can do. If he suggests crutches, I'd say to stick to it. When you are cleared to walk again, start out slowly, don't risk shocking the system. Bones need a certain amount of stress to heal strongly, on the other hand you don't want to end up back where you started. Take it on the safe side and then some.
It's never been extremely painful for me that I needed medication. I actually preferred to not take anything, then I could really feel it if I was over doing anything. The most sever feeling I had was like a dull ache when it was cold and rainy. You want to stay away from sharp pain!
Keep the come back gradual. Don't be afraid to start off with the 4-5 minutes for the first few weeks of running, and move up gradually, like 1 or 2 minutes 1 or 2 days a week, and just re-introduce your body to the shock. Keep on the grass, soft surfaces are your friend. The running isn't really for fitness at first, it's for re-training your body to handle the shock of hitting the ground. Hit the pool( and bike when you are ready) for the intensity. I'd be careful with biking especially depending on where the fracture actually is.
My come back was successful the first time around. Now I'm trying to figure out why I have gotten another fracture in the same femur in a different spot. I'm trying to get appointments to check bone density, and to get my biomechanics analyzed. For some reason all of the force from my running is going through that left femur.
I hear from all of the doctors that I see how uncommon this fracture is, but there is someone on Letsrun every few months in the same boat, and I know personally 3 others who have had the same thing... So I think that it may not be THAT uncommon.
The good thing about this kind of injury is that you will heal, and you will run again. I just wish that I had been more proactive about finding out a reason behind why I got the fracture the first time, because maybe then I could have prevented it the second time.