When I had extreme low Vitamin D, Dharmesh, back in 2009, I had Osteoporosis and more like a fracture near groin area and extreme bottom of the leg, such that I could not lift my leg also. My Vitamin D levels were 9.62, very very low. I then had one shot of Vitamin D injection and after several days, my leg felt relief and that I could lift my leg up to 80% more than what I was able to do. So while it may feel like a fracture or show like a fracture, it may not be actually a fracture that severe.
What Andy says, I completely agree. My Vitamin D after getting only 1 shot of injection raised to 33 from 9.62 and I improved a lot and after which, my healing process started nicely. I suggest getting injection, but consider or take advice of doctor first.
-P.