I been taking the drug crestor (rosuvastatin) a statian for around a week now I been noticing my heart is racing its 5 mg should I stop it?

Probably not. Crestor (rosuvastatin) in this dose does not often cause a racing heart. It might be that your heart is rented for another reason. I would check with your doctor regarding this symptom and consider wearing a 24 hour monitor. It may be that your symptoms are unrelated.
Crestor (rosuvastatin) side effects. A complete list of the most common side effects of Crestor (rosuvastatin) (c) can be found at this website: http://www.Rxlist.Com/crestor-side-effects-drug-center.Htm you should call the physician (p) who ordered c for you and discuss your problem with the p. Good luck.