Would you mind to update your original post with the link of the original profile? (This will help the mod/admin to have a quick look into your profile. You don't want them to spend their time on searching your profile? They already have tons of works to do.) I can not find anything for the profile using the search function. Wondering why?

Are you saying, you never posted a BTC address ever? If not then try finding any ETH address if you ever posted. If the luck favors you then immediately take an archive.is of the post or ask someone else to quote it for reference. Then start the message signing process with a little hope of having the account back.

If you do not have any address whatsoever to prove the ownership then I am afraid, you are out of luck mate.

Good luck.