I must have accidentally hit a button I shouldn't have,

In the "Tool Property" Window, at the very bottom right corner, you'll see an icon with two wrenches. Click on it, and in the pop up window, under the header "Ink," check the empty box so that an "eye" icon appears.

If you can't find your Tool Property window because you're a retard, look at the title/menu bar (File, Edit, etc.) an enable it under Window. There you idiot.

>>2628983
got it, cheers