Multiple pains, hard to see a gain!

So here's the drift. My elbow hurts, I suspect its probably a torn rotator cuff. My knee is acting up again and all this is happening in a short span of 8 months including a herniated disk at my lower back which just recently settled down. It's like an obstacle one after another and I find it incredibly hard to be patient with it as time goes by. I'm putting off lifting for a while now, and now I'm having a knee problem. So no cardio?? I honestly don't know, but we'll see how it goes. Best of luck to me!