I remember probably 15 years ago dan kote had a lab called Bangor labs.
this is when guiaicol first surfaced on the scene in brewing
this dude was using way too much, I remember a few of us , we had all started juicing together recently, and would pin 1ml of the TNE and would within 5 minutes we would get sick, throw up, flush red, etc etc. it was gnarly , too much guaiacol i think he said it was
I am sure the "too much, feel sick" is just an extension of what it feels like to be on too much tren lol minus perhaps some moodswing intensities but in general i imagine it to be similar. i have pinned 3cc for months and months everyday at times in my 20s and felt sick but I noticed DIFF lasting effects , bad ones like scar tissue....tons of scar tissue.