Oh man! I never pulled a ligament myself and I hope I can keep it that way. Pulled muscles are bad enough but they sort themselves out in a day or two.
Yeah it was... disconcerting. Like you knew it hurt but it also -didn't- strictly speaking? It was like all the nerves in my knee turned to ice water and aside from landing on my bum, I really knew something wasn't right. It did get care and stuff but it also still makes a lot of noise on stairs, especially in colder weather.