Sounds like a bad couple days Sara. Reads like the body may be cooked and you really are pushing too hard. In earlier post you said that you couldn't get the HR up. You may need to take a few days off to recover and reset the body. I had a sinus infection and after affects that lasted all of April and well into May before I got any top end efforts out of my body. It was really frustrating being able to complete the training rides but not have any race efforts to give when it counted. It's only been the last 3 or 4 weeks that I've felt normal again.