According to the sources you provided, changes in appetite are not listed as a common side effect of Lipitor (atorvastatin). However, it is important to note that individual experiences may vary, and some people may have different reactions to medications. If you have noticed any changes in your appetite while taking Lipitor, it is recommended to consult with your healthcare provider. They will be able to provide personalized advice and determine if the medication is the cause of your symptoms or if there may be other factors involved.

Sources:
[1] Drug Patent Watch. Lipitor. Retrieved from https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] Healthline. Lipitor: Side Effects, Dosage, Uses, and More. Retrieved from https://www.healthline.com/health/drugs/lipitor-side-effects
[3] Mayo Clinic. Atorvastatin (Oral Route) - Side Effects. Retrieved from https://www.mayoclinic.org/drugs-supplements/atorvastatin-oral-route/side-effects/drg-20067003