Sock You say you didn't have an accident, but then say you fell - THAT IS AN ACCIDENT.
My OP says exactly what happened, as in nothing really, I might have slightly twisted it or something, but nothing to warrant the pain I was in.
It made another, altogether separate post, about having to bend some days later to get something that had dropped from my bag, as I used my knee without thinking the pain made me cry out.
I have been resting and using, and it is vastly improved. Initially I put ibuprofen gel on it to sleep at night, and during the day just to ease it a bit. I am currently on ibuprofen anyway for something else, so thats probably helping too.
Thank you for thd suggestions. I do know 100% its not sciatica, as thats totally different. This is painful to touch in one part of my knee alone, the miniscus.
I have been very careful with it,and it is healing very well. Today, I actually partially relied upon it during a knee bend and it was fine, so a vast improvement on the initial 'whatever-it-was' !