What could be worse than waking up in a strange place, not knowing how you got there? Well, waking up in a strange place, not knowing how you got there and finding that you were unable to speak would qualify. Waking up in a strange place, not knowing how you got there, finding you were unable to speak and that you also had very little control over your body would qualify with honours, and might well reduce a person to tears.
It's not as uncommon a situation as you might think.
What you do next is when it starts to get interesting...