This article suggests that internationally speaking government warnings begin at 200mg of caffeine a day, which you are almost certainly going over. I seriously

This article suggests that internationally speaking government warnings begin at 200mg of caffeine a day, which you are almost certainly going over. I seriously suggest you do your own deeper research on the health effects of coffee as it is a bit of a mixed bag of health benefits and health risks. https://www.mdpi.com/2072-6643/10/11/1772/htm https://www.mdpi.com/2072-6643/10/11/1772/htm