Conversation: The conversation between human and AI assistant.
[|Human|] Three weeks ago, I was kneeling down (almost sitting on my feet) when my left knee made a popping and cracking sound following by immediate intense pain. For several weeks, I have experience pain. Now tonight, I tried bending my knee about 80% to help my daughter pick up toys, and my knee hurt so bad I buckled down and fell in pain. Any thoughts on what I did to my knee and if I require medical attention for my knee?
[|AI|]  Respected sir/madam, thanks for asking questions. I have understood your concern about knee pain. As you mentioned you had history of knee injury, and again after three months you tried lift weights, so it suggests that your muscles around joints were not strengthened properly, so now when you tried due to weak muscle your knee joint buckled you fell down. So now you need to take physical therapy properly and strengthening exercises need to be started. Visit Physiotherapy center and take ultrasound and IT modalities, so pain will be relieved and prevention for further progression and recurrence exercises are must do. I hope you have satisfied with the answer. Feel free to ask again.