No, eating a crab is not the same as eating a roach. Crab are actually edible, and roaches are too, but crab is more of a lifestyle food. crab has much more richer taste and is better taste in my opinion.
They are separte eating disorders, but do have a common thread. Binge eating is where a person "binges" often. A binge is where a person consume large amounts (to the tune of hundreds to thousands)...
This is because there are more medical aspects that apply to being diagnosed with an eating disorder. An eating disorder requires medical attention, nutrition counseling, and therapy. There's also...
If you are eating these things get to your doctor IMMEDIATELY your body is either lacking something or you may have a disorder where you eat things that you aren't supposed to eat I forget the name...