Form not showing up in list of sheets- but link works


I created a form for people to confirm they've read my info. Sent the link to the form. The link works for me, I've received confirmation that I've used the form. But when I log into my account, the form does not show up on the list of sheets, nor is it located in the "manage forms" section. How is it possible that the link to the form works if I can't see the form in my account?