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.
Chronic migraine symptoms. Symptoms of a chronic migraine occur at least 15 days in each month and for at least three consecutive months. A chronic migraine must also involve two of the following migraine characteristics for a minimum of eight days in a month: causes moderate to severe pain. predominantly affects one side of the head.