I am not an athlete.
I have not followed a regular workout regiment for nearly 10 years. The last time my body fat percentage was checked, I was considered obese. My BMI says nearly the same thing.
I do not watch what I eat. I do not push myself. I do not try to stay active. I do not train.
I am not strong. I am not fast. Most importantly, I do not have endurance.
But for some reason I have chosen to do a 100 mile bike ride in 4 days, and I am very nervous.