I say yes... I herxed after I started up epsom/peroxide baths. My whole body felt like I was 90 years old (I'm 29 this month) for the first 3 days (starting the day after my first bath). My muscles were so sore and I just felt icky. On the 3/4 day I felt amazing. Then I stopped doing them and now I feel crappy again so I'm going to start it back up...I know it's something that needs to be done continually but I got lazy.
On a side note, I also really herx after I go tanning. I have olive skin, so I actually go tanning only to get the herx. My tanning herx symptoms are usually fatigue, dizziness, fogginess, headache, pain behind my eyes (yes, I wear the eyewear), shakiness, weakness, and a real bad flu feeling (minus any vomiting). I haven't gone for a while so I am planning on going tomorrow and the next day.
I'm curious, does anyone else herx after tanning?