Brief Answer:
Panic attack, Generalized anxiety disorder, and hypoglycemia orhypotension

Detailed Answer:
Hi,
Firstly thanks for choosing health care magic for your query!

Have noted all your details,
Many conditions associated with dizziness, excessive sweating, feeling faint and nausea or vomiting.How ever most common among them are Panic attack, Generalized anxiety disorder, and Low blood sugar (hypoglycemia),Exercise or physical activity,Gastroenteritis,Low blood pressure (hypotension),Coronary artery disease.
Please get your blood sugar levels and blood pressure checked up.
A thyroid function test should be done.
Baseline tests of cardiology like ECG and 2d echo should be done to rule out cardiac ischemia.
Serum electrolyte should be checked , a imbalance in electrolyte could be a cause of your symptoms.
Please do mention your anxiety levels, higher anxiety levels may be associated with a panic attack.

You have given a very brief history, Kindly answer the following questions.

Are you a smoker or alcoholic?
Are you on any medication?
What are your anxiety levels?
Life style sedantry or active?
Is it the first time you are experiencing symptoms?
Any previous history of any ailment?
Loose motions?
Any history of palpitations or heaviness in chest?

Please do answer the questions.

In case you need any other help ,i would be happy to help!

Thanks,
Dr Rini
Cardiologist

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