I tore my ACL (anterior crucial ligament) and PCL (posterior crucial ligament), which are grade 2 injuries. The initial injury happened a month ago. The doctor said surgery would not be needed. I spent seven to ten days on crutches and began light resistance training, cycling, and walking. My rehabilitation has been going well, but I had to run and chase my dog, who got away yesterday. My knee immediately started swelling again, and every time I took a step, my knee popped and cracked. It did not pop and crack before during my recovery. I could walk on it fine after the initial swelling went down. I am concerned I may have further damaged my knee. Does it make sense that it is only popping and cracking because it is swollen, and when the swelling subsides, it should be more solid again?