I have sever pain in my left knee there is no swellng I ve had this pain for about 2 years it is in the front of my left knee there is no swelling and it acts like it wonts to give out on me if I put my leg up agenst somthing like a wall and push it is r

You. You need to have an orthopedic evauation. Severe knee pain for two years and feeling that your knee wants to give out is concerning. You need to be checked for a cartilage or meniscus injury. Please make an appointment with an orthopedic surgeon for evaluation.