Numb

It was as if Todoroki's mind had detached itself from his body, and his limbs and organs lay still, awaiting for his mind to return. he could still see and hear everything around him, but it all seemed unreal, as if he was in a fake world, a virtual reality. Detached, unaware, disconnected.

Numb.

OR
Todorki has a panic attack after the sports festival and doesn't know what's going on. Bakugo and Aizawa are there.