Just beautiful! What difference would you expect to see between this 'snowy' plant and one doesn't have those crystals?

Never mind. I found the answer:

I use cannabis for a lot of pain relief. When the trichomes begin to turn amber, the plant is converting some of the THC in the trichomes to CBN, which gives a lot more of a body high, giving me the pain relief that I am after.

Sorry about your pain. If I were a real guru, I'd send you some healing waves. Prayers is the best I can do :)