Today I noticed a gradually growing ache in my right knee. Normally, my knees are slightly hyperextended, so after crossing them for any amount of time they hurt. However today I noticed this pain while walking and it felt like it was more in the tendon/muscles behind my knee joint, I've tried my normal remidies for pain relief (walking around, and then when that didn't work I rested it for a few hours), with no results. With no movement the pain is probably at a 2/10, more of a discomfort and goes up to about a 7/10 with lots of stiffness while moving. It's slightly swollen but no visible bruising, and I have absolutly no idea what could be causing it. I'm an 18 year old female, so I don't think any age-related ailments would be the cause.
So my question is if this is something I should have checked or if it's anything I should be worried about?
It is a muscular and soft tissue spasm causing it. Have you got it examined by an orthopedic surgeon? Also how about any injury to the knee and is this discomfort only wrt right knee? As a first line of management, you should consult the Orthopedician for further guidance.