Hi,
Noted your history in detail and understood the concerns.
The persistent vomiting after the foods and beverages that you took can be due to intolerance to some and most probably can be food poisoning or intestinal infection as ou still have headache and not welling well and are lethargic.
Hence I would advise you the following in such a situation:
First of all consult a Doctor for clinical evaluation, examination and investigations of stool.
Tests of blood, particularly CBC, Electrolytes, kidney and liver function.
Lots of vomiting causes potassium depletion and thus can cause lethargy and severe weakness.
You need to have replacement of fluids and electrolytes either by intravenous route or orally if vomiting has stopped.
PPI like
Omeprazole and
Domperidone for
gastritis and stopping vomiting and nausea.
If ther eis any evidence of infection then a course of an antibiotic and
metronidazole may be needed.
Ad on probiotics.
Once the condition improves, vomiting and nausea stops, you can take oral replacement of fluids and electrolytes, other medications as needed.
Take rest.
Do not eat outside food.
Take care.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. T Chandrakant,
General Surgeon.