The first week was rough for me too. I was a 3-4 (8 oz) cup per day drinker. I quit cold turkey in 2013. Not for health reasons, I was trying to save money. I

The first week was rough for me too. I was a 3-4 (8 oz) cup per day drinker. I quit cold turkey in 2013. Not for health reasons, I was trying to save money. I had about a 2-3 week period of migraines and sluggishness. Now, I usually drink a cup of tea to stay regular and decaf throughout the day.