I get bad chest pain, have a hard time breathing and my whole body goes numb to a point where I can't move. My doctor said nothing is wrong?

Depends. What diagnoses did they think about and what tests did they do to rule these out? ... May need 2nd opinion, especially if persists or worsene ...
More information. If your doctor says that nothing is wrong, i must assume you have had some testing done. Would you care to share that with us?