With high cholesterol levels
that run in the family, this sounds like you have familial hypercholesterolemia. Taking statins does lower cholesterol but also lowers CoQ10 in the process.
Low CoQ10 symptoms are numerous and include nausea, headaches, dizziness, sleep disturbances, sexual dysfunction, fatigue, shortness of breath, memory loss, liver problems, muscle weakness, muscle pain, peripheral neuropathy, and congestive heart failure.
Supplementing with CoQ10 is highly recommended.