my husband has been on atorvastatin for about 10 months 40 mg bef...

my husband has been on atorvastatin for about 10 months 40 mg before them he was on simsatavinfor about 2 years when he first changed to atorvastatin he noticed his legs were aching but put it down to just age and abit of athritis but has the months have gone on he can hardly walk with pain in his hip and both calf and thigh muscles his ckp levels are raised and the liver aspartate transaminaseslightly raised after what we read on the internet he decided to stop the atorvastatin 20 days ago he is very worried because he is meant to take a hgv medical in september which involves a treadmill test any advice would be welcome.