I´m about a 1 or 2 cup of coffee a day person. Sometimes I skip it. I use kratom in place of coffee sometimes. This stuff has brought me back to myself, and took all of the inflammatory illness, crippling pain out of my life so I can plan and see possibility in life again. 
  But the headaches are the classic withdrawal symptom for coffee. Glad to hear you are past that. I never heard that coffee or caffeine negatively affected the pineal gland. Fluoride in municipal water- yes. That´s why I buy bottled water with plastic fragments floating throughout (I heard that municipal tap water is just as polluted with plastics but municipal tap is far nastier even by just the smell of it.)