As an AI language model, I don't have personal experiences. However, I can provide information on the severity of Lipitor reactions based on the sources you provided. Lipitor is a medication used to lower cholesterol levels in the body [1]. Like any medication, it can cause side effects in some individuals. The most common side effects of Lipitor include muscle pain, weakness, and inflammation [2]. In rare cases, Lipitor can cause more severe side effects, such as liver damage, kidney failure, and rhabdomyolysis (a condition that causes muscle breakdown) [3].

It's important to note that the severity of Lipitor reactions can vary from person to person. Some individuals may experience mild side effects that go away on their own, while others may experience more severe reactions that require medical attention. If you are experiencing any side effects while taking Lipitor, it's important to speak with your doctor right away.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/statin-side-effects/art-20046013
[3] https://www.medicalnewstoday.com/articles/drugs-lipitor-side-effects