Welp, figured out my chamber spinning issue, and it is now fixed lol.
The damn "stem" that's connected to the top cap was angled ever so slightly off-centered. I was able to tell by rolling the tank across my counter while looking in at the stem, and while it was rolling...it went around in a tiny circle rather than stay straight.
I stuck a screwdriver down the stem and tweaked it straight (barely had to do anything to be honest lol), and now the problem is fixed.
I have no idea how that could have happened :\. I never take my top cap off of the tank section unless I'm switching from my half-n-half to my SS or vice-versa. Its never been dropped or anything either. Oh well, its fixed now lol. I'm in vaping heaven once more.