After a year-long break, I've started taking L-Tyrosine tablets to boost my energy and stamina and metabolism, and to lower stress and pain levels.
http://dev1.drlark.com/nc/fatigue_nutritients_energy.aspFor me, it works very quickly: I take one 500 mg tablet in the morning, right after getting up, and it gives me enough energy to get through the day, so I can stop focusing on pain. It also clears my head, helps me concentrate, and seems to push through fibrofog fairly well.
The side effects are similar to the side effects of caffeine, but I don't have those personally. From what I understand, the side effects go away quickly.
(as always, do your research and check up on cautions and such, as with all supplements, etc etc etc; I'm not a doctor or expert, I just take the stuff)
http://www.nutritional-supplements-guide.com/benefits-of-l-tyrosine.htmlhttp://www.nutrovita.com/info/tyrosine.html