Could you elaborate about the headaches in the weekend? I also noticed I can not do much during the day without coffee but I never linked my headaches to caffeine.
The suspected mechanism for caffeine withdrawal headaches is that more blood is flowing to your brain than it's accustomed to [1]. Caffeine works as a vasoconstrictor, reducing cerebral blood flow (CBF) by an average of 27% across users with varying levels of dependency. [2] When you reduce or eliminate caffeine, CBF spikes, causing "weekend" headaches and migraines.
In my personal experience, weaning yourself off caffeine over the course of a couple of weeks is drastically easier than attempting to quit cold turkey. My preferred method of reducing or eliminating caffeine dependence is to reduce intake by 25% every 3-4 days. Once you're down below 50mg per day, you can switch to tea or quit without any physical side effects.
In my personal experience, weaning yourself off caffeine over the course of a couple of weeks is drastically easier than attempting to quit cold turkey. My preferred method of reducing or eliminating caffeine dependence is to reduce intake by 25% every 3-4 days. Once you're down below 50mg per day, you can switch to tea or quit without any physical side effects.
[1] https://www.ncbi.nlm.nih.gov/pubmed/9170342 [2] https://www.ncbi.nlm.nih.gov/pubmed/19219847