Highest on the probability list is that your yohimbine and clen is bunk. 50mg y is a pretty large ****ing dosage if you ask me. If this isnt the case then one can assume you possess cytochrome p450 mutations causing overexpression of hepatic enzymes....or you're just consuming an inducer without knowing it.
The Yohimbine HCL I take is either SNS or Primaforce - both reputable companies. The clen came from a research firm in pill form and I could feel it's effects but even at the highest dosage - I didn't get anywhere near shaking or feeling "hot". It was good for a wakeup though!
Stims ... as I explained ... don't do much for me. I am 51 years old and drank coffee all my life (and a lot of it). I use ephedrine regularly. I have a daytime job and then on some nights I'm a bouncer in a bar - and have to stim myself to make it to closing time (which is normally around 4am).
What I think is weird - is that no stim seems to phase me - but this ALPHA YOHIMBINE from LiveLong, even at small doses, rattles my chain pretty good. It acts differently than Yohimbine HCL does and I was just wondering why that was.