When I was diagnosed with Type 2 diabetes I was given a statin even though my cholesterol was 5.0 . I had no side effects at first but then started to lose my hair so was given a new statin and the hair loss continued so I refused to take them and my then GP accepted my decision. Then we moved house and my new GP suggested that I try a new one and rather than argue I said I would give it a shot. No hair loss. My point is it is worth persevering if you do get side effects. My cholesterol is around 3.5-3.7 now and no side effects.
My husband however gets severe muscle pains on every single statin available and has been approved for a new treatment he has to inject himself every 2 weeks so we will find out soon if his cholesterol is coming down and he has had no side effects so far.