These symptoms could be due to a case of meningitis.
Severe and persistent headaches, stiff and painful neck, confusion, sluggishness, muscle aches and weakness throughout the body, eye sensitivity and eye pain from bright lights, dizzy spells, are all symptoms of meningitis.
In some adults this condition can be manifested with a a slight headache and fever and they may not feel well and may have little energy.
Tinnitus or ear ringing happens in feverish persons, and may be a symptom of meningitis, too.
Visit your physician!