If I Am Experiencing Side Effects From Lipitor Such As

if I am experiencing side effects from Lipitor such as joint pain, muscle weakness etc. how long should it take for things to get back to normal once I stop taking it? I go to the gym 3-4 times a week , I am in good shape, am considered by most people to be large build. but at the gym I get weak in the shoulders when weight lifting , sometimes my gludials get timed on the tread mill.