Benson was diagnosed in Cincy with Celiac disease. My mother-in-law has it (allergic to gluten/wheat products) as well. If she eats anything with wheat in it, she gets lethargic and develops chronic fatigue. The weird thing is you can be fine your whole life and all of a sudden develop symptoms, etc. I assume Benson developed it while with the Bears, but was never tested for it. He always looked like he had no stamina or energy, and he now looks like the same back from Texas.