High chlorestol symptoms and conditions

I've been on 80mg of Simvastatin for probably about a year. I'm a 59 yo male 188 lbs in good health but with high cholesterol. Lately I've experienced severe head and neck pain, shoulder pain, hand and joint pain, and foot pain. I'm normally very active, hike and walk a lot but lately, and it's getting worse, so I don't feel like doing anything. I'm thinking it's the Simvastatin causing all these problems. I don't feel like paying $1000s to have med professionals hit or miss with ideas and more tests so I'm going to quit the statin on my own and see if I feel better. I've also noticed memory loss, tiredness, dizziness, temporary vision issues at times. These are not good as I like to rock climb and participate in stressful and demanding activities.