Hello and thanks for trusting me to help you. I am a board certified consultant with over 30 years of experience.
I understand your concern.
Well as you describe,such nausea,tightening sensation in chest are associated with gastroenteritis and gastroesophageal acid reflx.
So you should take OTC Liquid Emetrol/Gaviscon 2-3 times a day.
Start hydrate yourself with Gatorade.
Take metamucil and probiotic.
Gradually start a bland diet.
Eat banana,toast,rice,apple sauce,yogurt.
In case you develop persistent vomiting then see your doctor again.
Let me know if you have any further query so we can discuss it thoroughly in every aspect.
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