Nothing To Sneeze At Horse Is Allergic To Grass

If nothing existed, for example as an empty set, then something would exist, the empty set, in any possible way that can be. If something exist we cannot say that nothing exists. Yet even though nothing is something, something is something in itself, and therefore can not be nothing.

Is or was there a philosophy which examines a hypothesis that in fact nothing exists except maybe questions? I know there are philosophies that state that reality is a simulation etc.