thank for asking to HCM
I really appreciate your concern this symptoms may not be due to Migraine
but this is more seems psychological condition, but before thinking so I would advise you to get done the CT scan test, this would clear the over all doubts, for the loose motion
just do nothing this self limiting, just take care for hydration, for the vomiting
I would suggest Tab Domeperidone 30 mg once in day, if you have headache then Tab Acetaminophen
would be best, hope this information helps you have good day.