Its been 3-5 and i feel nausea and diziness and it happens anytime but mostly outside if i try to eat food or water unable to do that they make it worse i have deficiency of vitamin d and b12 which is treated and 1 month also paased but still i face this problem what actually i have many says its anxiety but if feels too physical like i have weakness or deficiency of something please help me what to do iam get very tired when i go outside i think i eat this or that but when i take few bites it happens guide me please the symptoms of nausea and diziness i face right now, same and accurate i get when i stand staright in assembly in sun for more than 1 hour