My 10 yr old son had a sudden onset of dizziness, seeing colorful spots, eyes began going side to side rapidly, nausea, sweating, and said he felt like he had a black hole in his stomach. It lasted about 10 minutes. He does have an Anxiety disorder, a vestibular disorder, and adhd. I ve never seen him do this before and don t know if he needs to see his doctor or if this was an anxiety attack.