Rhino's Sugar Free Energy Drink

I already have a hard time drinking most energy drinks. When you give me a diet/sugar free energy drink, there's no way this is going to be good. The first sip of this was pretty horrible, like swallowing battery acid. The next couple wasn't too bad. Perhaps I've already acquired the taste for this drink? Nope, around the fourth sip the first couple sips finally hit my stomach and it feels very similar to the time I had food poisoning. For three days straight, I lied on the couch while my stomach felt like it was eating itself. It was easily in my top five worst feelings I have ever felt. Any drink that can give me that same feeling is not one I want to consume.