@OpiateGuy
I guarantee it has to do with the "Dormin", especially back in the day (over 11yrs ago) when I use to hit the "Blocks" daily. Depending on where I went, would greatly determine how much "Dormin" was in the "H". Once, I figured out what was causing my Sinus and Asthma issues after my Nasal Surgery, I began to switch up my Connects. Over the past 8+ years, I been using my "Connects" in the Suburbs and outside the "Westside" and you can really tell the difference. It's much cleaner and the overall quality is much more consistent. The fact is going to the "Blocks" you have no idea what your getting, no matter how much you think you know them. Those people are there for one reason and one reason only, to make money. That's why "Quality" can vary significantly.
Nowadays I'm on MMT and don't use nearly as much as I use to (but when I do I only go through the phone connect) and because of that my Asthma is basically non-existent.
@chinky
I wouldn't doubt it, what so ever.
@Imajunky
Your a taking a big risk for a single Blow. You have to ask yourself is it really (really) worth it? To go out West @ Night by Yourself.... because it's just a matter of time until something bad happens. If your not able to afford your habit (at the moment) then why don't you consider getting into a Methadone program. At least then you can get yourself to a DOSE that makes you feel normal and use when you have enough cash to make it worth your while. I been doing this for years and it's really helped me get my "Addiction" under control.
Note: Don't get me wrong, I've been in your position before and I know how much it sucks to be "Sick". I just don't want anything happening to you... At least try to go during the Day or while the Sun is still kind of up.