I can't even get started here. If I take as low as 125 mcg of mb12 or 2,000 mg hb12 I get insane levels of adrenaline. None of my symproms change- just teeth grinding, anvil on chest, rapid breathing, crazy OCD and insomnia. If I keep at it for too many days, once I stop I will have bad overexertion symptoms. There's got to be something else going on here. FWIW I can take under 2,000 mg hydroxyb12 for as long as I want and feel nothing. Also adb12 gives me no discernable effect.