I didn't find much on your felodipine (plendil)....I would not increase the effects of statins as some calcium channel blockers do. The ataxia scares me to death. I don't think people on statins realize that sometimes, minor muscle aches and pains can signal the start to something as severe as cerebellar ataxia. The older a person gets the less likely they are to recover. i do think you have enough evidence to say your mothers was not genetic. ALso look up LOW cholesterol and mental illness. I believe sometimes that the cholesterol is there helping us (i know). Again you can point out to your dodctor, that all statin makers say DO NOT take statins with abnormal liver panels...... (in our case , i would never take them)