In morning I vomited. Yesterday night I had dosa and vada. Everyday I feel nausea but it does not lead to vomit but today I did vomit. Today I am not having nausea after that. I am feel alot anxious thoughts and got pain on the upper back near shoulderblades. I am taking pand but still I feel nausea and sometimes nausea. What could be reason for this? Is it related to heart? Though I have done ecg and echo test which came out normal.