Body image - the good, the bad, the not sure what to call it!

I am starting to think I need a shrink for body-image stuff. I CANNOT seem to stick to healthy eating. Ok, it's only been a week and only a day of bad eating, but it seems like the same old broken record....it is VERY TEMPTING to be satisfied with my 15-20lbs overweight, 50 year old body just the way it is. I mean, I can do most everything I've been wanting to do. I can run the Muddy Buddy, I can ride the BikeMS ride, I can do a sprint triathlon, all with my current level of weight and fitness. My husband thinks I look great, and nobody has said I look unhealthy. My bp is low, my cholesterol is right, and I'm well into menopause so no hormonal crap. I take the right supplements, and I don't eat a lot of junk food or sweets, just too much good stuff. I don't drink coffee. I have a glass of wine at night, sometimes two, but never more. Maybe this is just how I am supposed to look and I can quit FIGHTING it.

and then I see a picture of myself and think - I could do better....