Weird Knee Pain

[Nihal]

I'm 160lbs and 5ft 7in and 15.My knees have been acting wierd lately.They don't bother me when i'm cycling,walking,jogging but if i try to get up after sitting or stretch my legs,i experience a sharp pain in my upper knee. it goes away after a few minutes but since i(well. everybody) have to sit and stand quiet frequently,this is turning out to be a real problem.Do you have any idea whats happening to me and how to stop this

 

[musa]

Your positioning ie your seat may need tweaking a mm or two. Or just that your using your legs a lot more so rest will be ideal