Hello, when I was around 12, I started having knee problems, such as pain locking, and popping. My knee never swelled, but it would always hurt whenever I moved to much or put on my weight on it when crouching or bending. I went to the doctor for it, and had an xray done, and they told me I was just having growing pains. I'm 18 years old now, and I've continuously still had knee pain throughout the years, in both knees. The pain isn't constant, but do I need to get another xray or MRI done?