Based on the information provided, there is no direct mention of energy changes in relation to the use of Lipitor, a medication commonly used to treat high cholesterol levels.

However, the National Center for Biotechnology Information (NCBI) article [2] does discuss the mechanism of statins like Lipitor, which primarily involves the inhibition of HMG-CoA reductase, a key enzyme in the cholesterol synthesis pathway. This inhibition leads to a decrease in cholesterol production and an increase in the number of LDL receptors on liver cells, which helps to reduce LDL cholesterol levels in the blood.

The Johns Hopkins Medicine article [3] also explains that statins can have various side effects, such as muscle pain, liver damage, and digestive problems. However, it does not mention any changes in energy levels as a potential side effect.

Therefore, based on the available information, there is no evidence to suggest that Lipitor use is associated with changes in energy levels. If you have concerns about energy changes or other potential side effects related to Lipitor use, it is recommended that you consult with a healthcare professional.

Sources:
[1] <https://www.drugpatentwatch.com/p/tradename/LIPITOR>
[2] <https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5005588/>
[3] <https://www.hopkinsmedicine.org/health/wellness-and-prevention/how-statin-drugs-protect-the-heart>