It's midnight and I'm sitting here thinking do I go to the hospit...

It's midnight and I'm sitting here thinking do I go to the hospital or do I wait it out and see if all this stops. I took 1 Guaifenex PSE 600/120 about 4 hours ago. My heart is beating so fast I can't even count the beats per minute. I feel so scared. I've never had anything like this happen to me. I can't speak; my troat is to sore from coughing up mucous. I just sit here downing glasses of water hoping it will all stop and soon! I WILL NEVER THIS THIS STUFF AGAIN!