I would go back to your Dr. and ask him outright if you are having a problem with your heart that could be causing the sx. Dizziness, nausea, vomiting, and racing pulse are all sx of possible cardiac problems or also anxiety.
Are you on any medications?
This is not a topic we see here often but I do hope someone will come along who can give you better information than I did.
~~Kitt~~Moderator: Anxiety, Osteoarthritis,
GERD/Heartburn and Heart/Cardiovascular Disease. "She Stood in the Storm & When the Wind Did Not Blow Her Away, She Adjusted Her Sails."