Coming from someone with a very addictive personality, I think it is "addictive personality." I have tried rec. drugs, steroids, otcs to get desired effects. The truth is that "drug" addicts are hooked on a feeling and many bodybuilder's are "hooked" on the idea of having the perfect body. They are addicted to fixes just as body dismorphics are addicted to changing their body image. The ranges of addiction change, but in essence they are much the same. That almost sounds philosophic.