Ok basically the other day I had a really bad cold so I took about 7 Tusso-DMR's which were cold medicines. After an hour after taking it, I slowly started to feel weak, then I knew I had to lay down and I got up and went out of the class into the hallway and my heart started pounding.. I was having trouble breathing. Then I eventually threw up and slowly started to calm down to normal. What happened? What would happen if I took double that?