rmschaver is right. Caffeine is an excito-toxin. That means it stimulates brain cells to the point of fatigue and even injury or death. I tried the caffeine trick about 11 years ago. I used Excedrin to help with head aches plus give me a shot of caffeine. When I told my doctor, he about bit my head off.
The only thing caffeine will do is continue the roller coaster ride. I enjoy a Doctor Pepper about once a month but I pay for it.
The research shows that a single serving, usually in the AM is tolerable by most. Same goes for a single serving of alcohol/wine/beer per day.
Attempts to use caffeine to help with recovery has not shown a consistent benefit even though it can provide short term improvements.
A more important concept is learning to wake the brain up properly. By this I mean getting good brain rest so the brain is empowered to be alert. A nap mid-day is a big help to the recovering brain. If you feel kile you need a pick-me-up, take a short nap. 20 minutes can make a big difference.
If you are sleepy during the day, it is telling you that you are not getting proper recuperative sleep which includes good oxygen while sleeping. Restless sleep is going leave you struggling during the day. If somebody observes you tossing and turning, especially in the early AM, expect to have a tough day.
Hope you can find a way to go without the caffeine.
My best to you.
Mark in Idaho
58 years old, retired due to disability, married 33 years, father of three, grandfather of four, Suffered a serious concussion at 10 years old (1965) stopped most driving after last concussion at 46 years old (2001), Post Concussion Syndrome/Multiple Concussion/Impact Syndrome with PTSD, immediate and short term visual and auditory memory problems, slowed processing speed, visual and auditory processing difficulties, insomnia, absence seizures, OCD, 14 concussions since first concussion at 8 years old, Taking paroxetine and gabapentin for 12 years. Added L-Tryptophan and reduced paroxetine by half 3/2013
"Be Still and Know That I am God" Psalm 46:10