I've fought with my weight my whole life. When I was 6 or 7 years old, I was the skinniest kid in my class. A couple of years later, I was the fattest. Even though I was healthy weight, in high school, I felt fat, because all of my friends were skinny.
As an adult, my weight yo-yo'd up and down, from a high of 225 pounds to my comfortable weight of 165. When Val and I moved to Colorado, in August of 1992, I weighed 190. I wasn't completely out of shape, due to my growing love affair with the bike, but I was carrying a lot more weight than I was comfortable with.
I started working at Destinations Cyclery in February of 1993. still weighing in at 190 pounds on the old bathroom scale. By September of that year, I was down to 150. Mountain biking five or six days a week, and racing whenever I could get a weekend day off put me in a calorie deficit, big-time.
It got to the point that I couldn't gain weight, even if I tried. People started approaching me, concerned about whether I had cancer and just hadn't told them.
I told them I didn't have cancer, but I did have a sickness...I was suffering from bicycle fever!
I no longer have that "can't gain weight" problem,I'm hovering around 175, right now. But, I do still have the fever.