In November 1942, the Italian cyclist Fausto Coppi took "seven packets of amphetamine" to beat the world hour record on the track.  In 1960, the Danish rider Knud Enemark Jensen collapsed during the 100 km team time trial at the Olympic Games in Rome and died later in hospital. The autopsy showed he had taken amphetamine and another drug, Ronicol , which dilates the blood vessels. The chairman of the Dutch cycling federation, Piet van Dijk, said of Rome that "dope – whole cartloads – [were] used in such royal quantities." 
That's really odd I've been on 850mg a day for a little over a year now idk how long you stuck to it but you do build a tolerance to all the side effects. I still get a mild appetite suppressant effect but other then that I feel perfectly fine. The first month I definitely had some GI issues, diarrhea, stomach cramps, all the not fun stuff. But Idk I endured it for the longevity Blood glucose benefits. I'll double my dose if I'm carbing up and haven't had any negatives maybe you just didn't stick to it long enough. What would you feel while on it? Light headed/weak or something else?
It depends on the work. I have a very basic open framed, outdoor wood oven which was built according to instructions laid out by French ceramic artist, Camille Virot. My relationship with this oven is very engaged, like with a musical instrument. I use it most of the time as I live in the countryside and have access to a lot of wood, and I like using dried leaves and straw to smoke the pieces. Since we don’t have any neighbors it doesn’t bother anyone either.
Your work feels like a real collaboration with the botanical world, both urban and rural landscapes?