My knee. OUCH

@ days ago (as of the 24)my knee has been hurting bad. Whenever I walk or uni it hurts. I just learned how to go UP Stairs on my uni and a few days after my knee started hurting. is this a uni related injury or did I just twist it the wrong way?

i play a lot of sports and hurt my knee often. i can’t tell you what you did to injure it, but i can tell you that the best thing to do is ice it and take some ibuprofen