It sounds like some of your toolbars have found their way to a place between screens.
With some parts of the workspace this can be rectified by using Window/Preferences/Workspace/Reset Workspace.
But this often has no effect on toolbars.
There is the Alt+Spacebar option, but this also can fail with toolbars.
You may have to use the manual method. Which is basically to use the Display settings to move the screens around in virtual space to track down the errant toolbars and move them back.