My hair is changing color!!??

Ca

Hair professionals, feel free to chime in:

I was born w/ strawberry blonde hair, which changed to a dirty blonde. Once I hit 35, my hair was a mousy brown that had golden highlights in the summer. Then I got a Cruella Deville gray streak at each temple a couple of years ago.

The other day my mother in law commented she loved my super blonde hair color and asked me if I dyed it myself. I was like "what???" Nope didn't dye it.

When I got home, I tool a good look in the mirror and saw what she was talking about! I know my hair gets lighter with sun, but I'm like a bleach blond now! Like Marylin Monroe blonde. I haven't been outside *that* much!

Is it just how I'm going grey or some super pale person phenomenon or from getting healthy (more fresh foods, low carbs, high protein, exercise)? Hormones maybe? I'm at a loss.