Posting a physique doesn’t mean someone owes you a disclosure with every photo, babe. And not everyone with a great body is on steroids. Your insecurity doesn’t create a moral obligation for strangers. This sounds more like looking for a way to cope.
if you want to do steroids that is a personal choice but if your personal choice includes sharing your body on the internet with thousands of strangers on a regular basis you have a moral obligation to repeatedly mention that you did not do it naturally