I was once driving along fine in the left lane and my female friend in the passenger seat suddenly yelled "TURN RIGHT HERE. RIGHT HERE! RIGHT HERE!!!"

So I cut across two lanes, avoided several oncoming motorists and made a hasty but decent emergency right turn into the parking lot.

She looked disgusted and said "Why did you do that? The place is RIGHT over there" and pointed to an area on the other side of the street on the left of where I'd been. "Why didn't you turn left RIGHT THERE WHEN I TOLD YOU TO!".

Ah, I loved that girl (platonicly). She hit me with a shoe one time, but I still feel bad for who she married.

You sound like Raymond Reddington.

This is basically the plot to the John Cleese film Clockwise: https://www.imdb.com/title/tt0090852/

or playfully, "no, the OTHER right" :)

Whenever I hear the words 'left' and 'right' and have to act on them, i slightly twitch the corresponding arm or foot, and then can orient myself accordingly.

I "know" where my right arm is and I can feel it instinctively (as a right handed person, it's my main, default arm). But apparently my brain cannot map those words to directions in the outside world until it establishes a positional relation to my own body. I used to be ridiculed as a child for not knowing left from right until I developed the twitching trick.

I've done this for such a long time, one of the first times was at the eye doctor, when they test your vision with the symbols on the walls. Some of those "E" symbols were pointed in all directions and the hand twitch was so helpful. Thank you for sharing that tidbit!

This sounds like a potentially dangerous condition to have if you drive, no? Is there a name for this?