headache relief could be a blood sugar thing? The adage we learned in med school was pain better immediately after eating=duodenal ulcer (and reciprocally, worse 2-3hrs after). You eat something, your body sends signals to your duodenum (small intestine right after your stomach) to start secreting protective mucus, ulcer there feels better initially, BUT as soon as the acidic stomach contents hits the ulcers in the duodenum (2-3 hrs after eating usually) the pain comes back/gets worse. That being said, personally, when my stomach/esophagus ulcers were pretty bad I always felt better after putting something in my stomach initially, but then 20 minutes later would regret it so...everyone's different, and patients don't read textbooks. Oi.