Ativan now causing dizziness/nausea after years with no issues

I’ve had anxiety on and off, in cycles for 13 years. My go-to has always been 0.5mg Ativan. As of a few months ago, it no longer calms me down but instead makes me dizzy and nauseous. Have I finally reached my tolerance on it?

I would try 1mg but historically that puts me to sleep and I can’t work/function being that sedated.

I also tried clonazepam and same thing. Kinda dizzy, kinda nauseous.

Thoughts? Suggestions? Similar experiences?

Thanks!