Did anyone have similar experience or does someone have any information if it is possible to experience a die off or some kind of toxin elimination without being in real treatment?

I switched to locally grown organic only produce and take probiotics, best I could find but store bought. My face and neck developed persistent bright dark pink rash. I also had a few red spots on my leg. They went away. My left eye twitches and some yucky substance came out once. 

I wonder what it can be. The rush is especially bothersome because I’d like to know if I should try to do anything about it.