So for sometime now my knee has been aching, it's feel like it's gonna slide out of place or that it isn't in the right spot. This has been happening for a while now. I've never had a knee injury but I played soccer at my higher for the past 3 years, I'm 17 year old female. I'm currently not playing soccer or doing any physical activities so I don't know why this could be happening. I mainly feel the aching and irritation when I walk, my knee cracks but when it's hurting a lot it doesn't. It also feels like in the back of my knee, in the same leg, I'm going to get a cramp but it turns into a slight cramp and the back of my leg feels tight and also irritated. Any ideas on what this could be? Why this could be happening? I've considered getting a knee brace but I don't want to get it if this won't help. Should I go to the doctor? I feel like they aren't going to give me many answers as to why this is happening.. Thanks, sorry this is long I tried to give as much detailed info as possible