I got embarrassed long after I started riding and a few years after I quit racing. I had series of health and injury issues and spent a spring and two summers on my back, gaining nearly 100 lbs. over several years. I"ve found that people, including riders, are impressed that I still ride and am making and effort to lose weight.
I really do think the only ones who should be embarrassed are those who don't execise or eat "healthy".
I've been trying to "lose" for some time. I finally quit driving 1 1/2 years ago to force myself to ride more and have lost 30 lbs since. To get to my goal I think I'll need to increase mileage to 200-300 miles per week or do a lot of "push-aways", eat more veggies and less meat