Based on the information provided, there is no direct evidence linking Lipitor use to joint mobility issues. Lipitor, a medication commonly used to treat high cholesterol, is a statin that works by blocking a substance your body needs to make cholesterol [1].

It is important to note that, according to the Mayo Clinic, some statins can cause side effects such as muscle and joint pain, but this is not exclusive to Lipitor and can occur with any statin [2]. The National Center for Biotechnology Information (NCBI) states that statins have been associated with muscle-related adverse effects, including myalgia, myopathy, rhabdomyolysis, and, rarely, autoimmune myopathy [3]. However, joint mobility issues are not specifically mentioned.

If you are experiencing joint mobility issues and are concerned about your medication, it is recommended that you consult with your healthcare provider. They can evaluate your symptoms and help determine if Lipitor or another statin may be contributing to your discomfort.

Sources:
[1] <https://www.drugpatentwatch.com/p/tradename/LIPITOR>
[2] <https://www.mayoclinic.org/diseases-conditions/diabetes/in-depth/diabetes/art-20049314>
[3] <https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2949584/>