Why is it when I perform physical activity my knee-joints hurt? Could it be that I'm growing?
not sure about growing... but maybe it all the stress from the activities your doing.
Do you do a lot of running?
how old are you ?
arthritis,water on the knee,growing pains.It could be a number of things.
Dont really kno. I'm not used to working out but I have this to, it make me feel weak. I'm 15 but it seems like this is just me.
Totally. My knees gave me fits like this all the time when I was growing.
it could be jumpers knee, it is fairly common in young athletes
Pain is usually an indication of a problem. It is your body talking to you and saying somethings wrong. Could be the way you bend, arthritis, torn meniscus, obesity. Best course of action is to see a doctor.