I eat GF, and since I cook for the family, my whole family eats GF too. I had unexplained fatigue and was sick a fair amount and the Drs couldn't figure it out. Removing gluten and dairy from my diet helped a lot. I am not sure if I am celiac or just intolerant. But, if I eat gluten or dairy (or sugar, too) I feel totally hung over the next day - foggy, sluggish, mentally slow and just really really tired.
It takes a bit of adjustment, but once you get used to it, eating and cooking at home is no problem. Lots of whole grains, whole foods. We eat lots of brown rice, quinoa, millet and rice pasta. Chix / meat/ fish and lots of veggies. It does make eating out complicated, although it is defianately more common now than it was 10 years ago,a nd easier to get a good GF meal. I snack on nuts and lots of nut butters, gf pretzels and gf /low glycemic energy bars. The gf bread and pretzels are much more expensive than their gluten containing counterparts, but for me, so worth it. (the kids and hubby who aren't allergic eat whole wheat bread and regular pretzels).
Let me know if I can be of further assistance - once you get used to it, it becomes second nature, but until then it can be a real drag!