Eyes rolling inward: do you have this symptom?

The title is just that. In May of this year, I had my first panic attack, with shortness of breath, palpitations in my chest and a lot of pain, and I was rushed to the emergency room. It turns out that in the following days I had a new panic symptom: rolling my eyes. My eyes rolled upwards, as if I had no control and couldn't see ahead. I searched the Internet and it doesn't appear that this is a symptom, but I have it every time I'm about to have an attack. Has anyone else experienced something similar?