I just can't seem to have everything perfect for riding these days. The past two times I've gone out for a ride I'm walled by this pain in my throat that creeps down to my chest. Along with the pain comes nausea soon thereafter. WHAT IS WRONG WITH ME? I should say that I haven't been able to go out with any regularity these days because of school. Could this pain be caused by lack of conditioning? It's so frustrating when I have to stop every couple miles because it feels like I'm either gonna throw up or that my throat is gonna just "burn" off. Thanks for any advice guys.