You can see your questions by clicking on "Profile" on the lower left side of your home page.

Then, click on "View All" next to your discussion section.

A brief overview of your questions, comments, and answers will appear. To see just a specific portion, in this case, questions, click on "questions" at the top.

It should take you to a page full of your top voted questions, hit "recent" for the recent ones.

Hope this helps!

-Sam

By default, questions under videos are sorted by "Top Rated."  You can try sorting by "Recent."  If your post was recent, you may be able to find it more easily.