A wild guess is that you have been working without a written contract for the last 5 years. But that guess is not written in stone.
However, whether or not you are bound by the restrictive covenants depends on the exact wording of those restrictive covenants and how they relate to the rest of the contract.
If your contract is not more than a page or so, feel free to post it word for word in its entirety, redacting any identifying information, and we'll can give you some comments.

