Auras,Migraines,Nausea...HELP!…

Migraines are actually quite common, and usually are not related to tumors. You sound like you have the classic symptoms of migraines, the halo, auras, sensitivities, and nausea/vomiting. While lack of sleep and poor diet are not a direct cause of migraines, but they can be triggers, meaning if you are prone to migraines these factors (along with things like stress) can trigger a migraine. I would suggest you talk to a doctor about it, he/she can offer advice to prevent them as well as discuss if you need any medication to manage it. Depending on the doctor he/she may order an MRI to be on the safe side, but that can also depend on the type of insurance your family has.