Hey @Amy T , I am so sorry you are going through this.
From what I've learned here, what feels like hypersensitivity is often just a normal reaction to nervous system whiplash. Stopping Effexor suddenly and bouncing Zoloft doses up and down is enough to overwhelm most people's brains.
Holding your current dose to stabilize sounds like a really great instinct!
I had two terrifying tapering attempts myself following standard advice (like skipping days) before finding this community. You might find these helpful:
https://taper.community/resources/blog/effexor-withdrawal-timeline
https://taper.community/resources/blog/zoloft-withdrawal-symptoms-and-timeline
You are not alone, and others have gotten through this. Better yet: they gathered to show the rest of us how to get there safely, too (--> keyword "hyperbolic tapering"). So feel free to share the tapering advice you got and when you CT Effexor, and ask as many questions as you have.
Hang in there; it's hard, and it takes time, but you will feel better once your nervous system gets a break. ๐ซ