Sinusitis can be divided into the following categories: 1  Acute sinusitis, defined as symptoms of less than 4 weeksâ duration (Fig. 2  Subacute sinusitis, defined as symptoms of 4 to 8 weeksâ duration; 3  Chronic sinusitis, defined as symptoms lasting longer than 8 weeks (Fig.
During a migraine, you may experience: 1  Pain on one side or both sides of your head. 2  Pain that feels throbbing or pulsing. 3  Sensitivity to light, sounds, and sometimes smells and touch.  Nausea and 1  vomiting. Blurred vision.  Lightheadedness, sometimes followed by fainting.
It is not a disease but a syndrome that is characterized by paroxysmal headache associated with other signs and symptoms. About 80% of migraineurs have migraine without aura, whereas migraine with typical aura accounts for 15-20% of cases. Isolated migraine aura without headache (acephalalgic migraine) may be encountered in 5% of patients.