I agree with what most have said. Take a deep breath and let the doc do his thing. It sounds like you have just started riding and that you are riding 20 miles per day. Assuming you are riding 4-5 days a week, that is a bunch of miles for a new cyclist. Overtraining will cause the body to react in some truly nasty ways. Unless you are a very fit athlete going in, that is too much, too soon. Rest up, see what the doc says. When he releases you to ride again, ease your way into it.