Hashimotos started wreaking havoc on my body a couple years ago, my metabolism died, had joint pain/stiffness (running made that worse), and access to a lot of trails with our move to Colorado really made me want to try cycling. I didn't want one of those crazy road bikes - that riding position is insane and just hurts your back!!! So my husband got me a nice comfort bike for Christmas one year. I loved it! I rode all the time, in the morning before work, in the snow - it didn't matter. 7 months later I bought a commuter bike, lighter and with 700c tires, and I was unstoppable! In February of this year when I sold my motorcycle because of the Hashi's, I bought a cross bike (one of them crazy road bike type things!), and I'm scheduled to compete in my 3rd triathlon in 2 weeks, and put those cross tires back on it for a race in 3 weeks.
Riding does so many things for me - it's very refreshing for me to commute into work, starts my day off right. It clears my head. It challenges me when I'm doing speed or hill intervals, or trying something new and fun like when I did a mountain bike race a month ago on my friend's bike. It takes me places I can't go in a car, and it takes too long to get there by foot.
Now, with cycling, even when my Hashi's goes on a rampage, I still feel somewhat in control; I'm not as helpless I felt before.