What Causes Severe Vomiting , Nausea And Headache?

hi,before i'm having a severe headache with nausea and vomiting as all around me keeps on spinning but i don't have a menniere's,but now i don't experience it maybe is it because i'm not stress bec. i'm having my duty before as a student with many school activities.is it possible to come back,what are the risk factor and remedies to get rid of t?