I'm just a little over 4 years gluten free. First, and most importantly, my chronic fatigue, constant body aches and headaches have went away. My fibromyalgia has basically disappeared. But also, there have been some subtle changes and some of them are just happening recently, 4 years in. I have had to turn down the volume on all the things I listen to, TV, my computer, my car radio and my husband's computer - all of them, because my hearing is better.
My sense of smell is better. At the time I actually went gluten free, I could only smell the strongest of scents and I was always a few minutes behind everyone else on noticing those. If it's a skunk, that's a good thing, but still. Smelling smoke might save my life at some point. :-)
My skin has cleared up. I thought that acne was going to follow me into my 50s and this might be an aging thing, but my skin has cleared up. The last thing is that my hair is thicker. I used to be able to put all of my hair in a ponytail and it was only maybe 3/4 of an inch in diameter and now it is nearly twice that. I feel like I have so much hair now!
Have you noticed any odd benefits?