Hi, I’ve got a lump on the bone behind my left ear, it is hard, immovable and it’s painful when I touch it but isn’t painful otherwise. I have not been ill recently and I’ve started to get pain in the bones of my right leg, round by the right side of my hip, my femur and my lower leg bone too, it’s a sharp pain when I’m walking and there is little to no pain when I’m resting, I tried googling but obviously so many things came up for it and I don’t trust it. I haven’t got any other symptoms, should I be worrying? I don’t know when the lump formed and I started having bone pain about 3 or 4 days ago