What Causes Severe Headache,projectile Vomiting,unconsciousness And Inability To Walk?

Hi, may I answer your health queries right now ? Please type your query here...am 30yr, 5''lady who was diagnosed with AVM after four diffr age addmission suffering from severe headache,projectile vomiting,unconciousness,and inability to walk.what is embolization or Gamma knife and where is the best affordable place i can get it done?its not available in kenya.NDUSH KENYA