I put off starting statins for years because of fear of side effects, probably influenced by what I'd read online, and some aversion to being on a pill for the rest of my life. When I did start it was absolutely fine, no muscle or joint issues whatsoever, still working out hard and getting stronger. I did notice a slight uptick in my insulin requirements around the time I started, but that settled down after a few weeks, and could also have been just my usual seasonal change. I wish I'd started sooner. The grim facts are that cardiovascular disease is the leading cause of death of diabetics, and we are at up to 4 times the risk of stroke and twice as likely to die after a heart attack compared to non diabetics.
https://bestpractice.bmj.com/topics/en-gb/533
Bear in mind that Atorvastatin is the number one most prescribed drug in the UK, there are many millions of people on it, so even a tiny percentage of those experiencing side effects is a large number. The millions who take them without any issue are less likely to talk about it then those with a complaint. There's also the 'nocebo' effect, where expectation of negative side effects tends to produce them. People prescribed statins are also often at an age/condition where various aches and pains start showing up, and after reading stories from others it's easy to attribute those to the pill. There was also an interesting study a few years back that compared statins to placebo and found that 90% of people's reported side effects were also elicited by the placebo.
The SAMSON trial empowered individuals to test for themselves whether taking a statin caused them side effects.
www.bhf.org.uk