Stimulants are hard on the nervous system, and Lyme causes neurological inflammation and other neuro issues, so it makes total sense. If you have MCAS, then coffee can be a trigger. If you are sensitized to mold, then coffee is a trigger because most coffee has mold in it.
And yes, the smell is divine! I have a half-cup of Bulletproof brand (mold-free) decaf coffee occasionally, and it's the best treat....
It's hard when Lyme takes away things we love.