1 The scientific name for caffeine is 1,3,7-trimethylxanthine. 2  Caffeine is considered to be the most commonly used psychoactive drug in the world. 3  Coffee, soda, and tea are the most common sources of caffeine in the American diet.  Discontinuation of regular caffeine use may produce withdrawal symptoms.
For most patients, post concussion symptoms go away within a few days to several weeks after the original injury occurs.[In others, symptoms may remain for three to six months.In a small percentage of patients, symptoms may persist for years or may be permanent.
The doctor said it could last up to 4 weeks but my concussion wasn't too severe and I feel like its gonna last over 4... show more I got a concussion about 3 and half weeks ago and I'm still getting minor headaches (that last about 5 minutes at a time) almost everyday. How much longer can I expect this to go on for? The doctor said it could last up to 4 weeks but my concussion wasn't too severe and I feel like its gonna last over 4... show more I got a concussion about 3 and half