Extremely tired! 5 days in

could be a flat line, but you might also be overdoing it on caffeine, try switching to green tea, low caffeine and very healthy.

 

Depending on what time you go to sleep you may want to stop the caffeine at least 8 hours before that to give it a chance to get out of your system before sleeping. I hope this may help and good luck.

 

Definitely not out of my mind. Having a great time overcoming. This is my 90th day freed of coffee. Today, marks the current 55th day hard mode. No wet dreams and will not tolerate them into breaking my transformed mind; no temptations; nothing but walking victorious.
~ A Stands To Reason vercomer.

 

Try some zinc supplement.
I ordered a 25mg supplement that consists of 25mg zinc and 1.5mg copper. After 3 days i already got tons of energy so i now take 1 pill per week, as it blocks other minerals from being absorbed which results in iron deficiency.