Can virus cause persistant come-and-go ha, slightly stiff neck, general lethargy? otherwise healthy woman..sound like brain tumor? no neuro symptoms

Virus and HAs: Many viruses can cause the symptoms you describe. In most cases, the symptoms are self limited and will resolve. If not, consult your doctor. There is no evidence to worry about a brain tumor; while a stiff neck can be associated with a viral meningitis, most of these are self limited and will resolve. Unless your symptoms persist or worsen, there is no need for alarm.