What is severe headaches cold feet chills tremors then vomiting light headed sweating neck pain?

Can be a big problem: Severe headaches, accompanied by neck pain, could be a type of meningitis (serious infection around the spinal cord and/or brain), although the real flu can cause similar symptoms. Cold feet, chills, and tremors occur when fever is rising; sweating happens when fever is dropping. Light-headedness and vomiting make it all more worrisome. A trip to the doctor is needed to evaluate these symptoms.

Migraines: Migraines can cause feeling of lightheaded (aura) preceding a headache. You could have all the symptoms due to migraines. You could consult a neurologist or a headache specialist or a pain physician.