I Sprained My Ankle On Tuesday. I Went To The

I sprained my ankle on Tuesday. I went to the ER to have an X-ray, and they said no fracture, just badly sprained. I've had severe swelling that has gone down a little, bruising, and am still not able to put any pressure on it. If I try, I feel tingling in my ankle and foot and pain. I'm on crutches and I have an air cast. Wondering why I still can't put pressure on it and what is with the tingling.