Hi. Welcome to Healthcaremagic. I read your query. If your wisdom tooth has gums around it swollen repeatedly, this means you are having pericoronitis. Removal of that tooth is the permanent solution. The pain from wisdom tooth can radiate upwards towards head and cause headache. If after removal of tooth, your headache persists, contact your physician for further check up. Also, your gastric troubles can also lead to tooth problems. Acid reflux in mouth can lead to erosionof teeth, discolouration, gum problems and bad breath. Consult a physician for its treatment. Maintain good oral hygiene. Brush twice daily. Use mouth wash or do warm saline rinses. Take healthy diet rich in minerals and vitamins. Have lots of fluids. Use mouthwash with sodium bicarbonate to neutralize acidic pH in your mouth. Chew sugarless gums. Hope the answer helps you. Thank you!