^ used to come across gooey stuff a few years back, I know what you mean about the anxiety it can cause.
It was the main reason I generally stayed away from stimulants for the majority of my drug taking career, only used small amounts to get me through a night. And spending the next day either benzo'd out or wishing for benzos. I also needed to smoke (weed and tobacco) ridiculous amounts whilst on it.
But recently the crystal meth that's been around has felt a lot less taxing on the body. Less to none anxiety, and I don't get that feeling like my veins are constantly throbbing (I don't IV, just a feeling of high blood pressure I suppose). It keeps you up for ages but the comedown is very manageable. And have managed to go long lengths without needing anything else while on it ie. tobacco, weed, alcohol.
Don't know whether to put it down to my life being a bit better at the moment, or I'm just not used to real quality gear.