Not know if (one) is afoot or on horseback phrase
To be so confused that one is unaware of one's actions
Since he found out he failed the law exam, he didn't know if he was afoot or on horseback.
I have been working restlessly for 36 hours straight. I don't know if I am afoot or on horseback. I need to rest now.
be confused about what to do
Being so scared, confused, and astonished that you can't think or do anything.
Unsure or confused.
Be ignorant, innocent or totally unaware; not know what's what
Not able to focus on something or feel confused because of being shocked or surprised