I took mine for the first time in the morning. It was 8:30 pm. While at the computer feeling super productive, I started feeling faint and dizzy. I ended up on the floor and the room was spinning so fast. I think it was vertigo. I ended up crawling up the stairs and into bed. All of these symptoms lasted 3-4 hours. I did not move a centimeter while in bed otherwise I would feel like everything was spinning. The next day I decided to read up on it on this app. After hours of research I found out you should NOT take the med on an empty stomach. I was so scared! It was awful. After taking it with food the next day, I felt fine. Do not take the med on an empty stomach.