I’m sure it will happen again
I'm sure it will too. You'll feel differently about it all in several months.
you should do some checking about for the kidneys/liver though. That may be your biggest undetectable problem. I have been colon cleansing and colon cleansing and have not seen a tad of black gunk here. But I have never done drugs enough to mention it. the dentist gave me some hydrocodone for pain though. I know for sure it weakens your kidneys substantially, lots of schedule1 and 2 drugs do the same. And lots of drinking causes cirrhosis of the liver. not sure I spelled that proper.
Your cleanses are probably more important to you than the chelating but the cleanses are hard on your system too so you might want to do some checking around, find foods that will strengthen those organs rather than cleanse and deplete them all the time. I know cherry juice is good for the kidneys. Artichokes, aparagus, all kidney and liver stuff.
Considering your body was sustained by drugs and alcohol for a decade... there has to be related damage. Weak kidneys could very well make your back sore.
I know for me, the cleansing is good but I feel best when i take a break from it and renourish for a few weeks with good food and some vitamins. Except for the cilantro pesto, I need to keep that on my menu all the time, i feel best with that on my menu too. I guess because it's food.
Some peopel recommend eating organ meats but I wouldn;t do that... I have tried eating chicken livers, beef livers, and I feel poisoned afterwards every time. Those animal organs are blood filters just like yours and chances are excellent they are full of arsenic, pesticides and other crap. The bible also has a passage in Levitcus where God tell Moses that the sons of Aaron should always burn the (sheep/goat/whatever) kidneys and never eat them... I'd take that as good healthy advice, tastes awful anyway, kidneys yick.