Urinary Tract Infection
"It made me very sleepy and dizzy. I also got chest pains and it made my heart race. My urine was also a very bright, almost neon yellow color. 

I stopped taking it after it 2 days and then I was fine. And I always took it after I ate. The one time I took it on an empty stomach, I vomited and was nauseous for a few hours."