You're right, you don't hear about this combo very often. I've had a lot of experience with being on both most of the time since I started my "drug
career" with speed and quickly went to shooting it, then started heroin
a few months later just once in awhile.
When more time went by and I was getting more and more unhappy with meth
... it was giving me a lot of bad, unpleasant side effects
and not giving me enough of the good effects anymore ... I started using heroin a lot more.
There was a period of about 3-4 months where I was transitioning from using methamphetamine
everyday to chipping heavily with heroin and it was a terrible, horrible time for me. They did not go well (for me). I was almost always on speed but would use dope throughout the day, using the two to wake up and calm down and get to work but instead of working like I wanted it to, I was a wreck. I felt terrible all the time and never had a good high from either one. I'd be driving to work and either feeling sick to my stomach or falling asleep.
Out of all the years of doing drugs
and all the combos, I definitely think this was the worst. I was falling apart at a rapid pace and not even enjoying it.
Also, one time, I did a shot of both together (like a speed ball) and just felt incredibly ill.
I don't know if I'm strange in this regard but I never understood why anyone would like this combo.
I do enjoy coke
and dope though. Coke is such a different, mellower on the body (but still mentally intense) drug that mixes well with dope.
It's like they work together to create a nice high of their own, whereas with speed and dope, it always felt like the two were fighting it out inside my body. not nice
Although saying that, I did have several friends who were tweakers starting on their heroin use, so they did both a lot too and seemed to like it, so maybe its just me?