And then I heard a thud...
Yup. You rolled right off that chair.
I jumped up and ran into your room just as you started to cry. I swept you up in my arms and you immediately started to smile and laugh. Whew!! Don't worry, I spent the next several minutes taking you into dark rooms and back out into sunlight to make sure your pupils adjusted properly. They did. You kept smiling. You're fine!
And I promise not to leave you in the chair by yourself anymore. I guess you are officially mobile!