Thanks for your question. I'm Dr Chaithanya, General Physician, trying to help you today.
I feel the symptoms you explained closely relate to viral gastroenteritis.
I wanted you to visit the hospital once to make sure your lungs are clear, by having a chest x-ray done.
A stool examination and ultrasound can get the diagnosis closer.
You can just take an over the counter antispasmodic to relieve the intestinal spasms, and visit the doctor if te symptoms continue.
Choose high protein diet, and take a lot of fluids.
Nausea can be a part of many conditions, As I said, ultrasound can also rule out any Gall bladder problems.
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Have a speedy recovery.