OK, I got a huge problem. I was adding some controls to a project of mine and I think I accidentally clicked 'Exclude from Project' on the folder that contained those custom user controls.
From there, clicking on my form's design view threw an error about my missing custom controls, I clicked Debug and Voila, my form became empty (went to the default form state) all the controls gone, which ruined my 3 month project.
Is there any way to set the form to how it was, or is the damage done, and it can't be recovered?
The controls still exist in the solution explorer when I click on my form, so I guess they are not totally deleted.