Profound change symptoms and conditions

I'am 45 year old female and I have been on simvastatin 40mg for at least 6 months. Here in the past 3 weeks I have had very weak legs and arms,they felt like they were wet noodles. I also was getting these week spells where it felt like I couldn't lift my arms or legs cause they was so weak.I had pain in my ear and big bad headaches that wouldn't leave. My heart feels like it skips a beat and I get very bad anxiety attacks. I have been to the ER several times and they can not find anything wrong. I even got very dizzy. The ER doctor told me that the dizziness and headaches was from a inter ear disturbance,well I think the inter ear disturbance might have come from the simvastatin after running across this web site. I'm going off the simvastatin tomorrow! Oh yeah and forgot to mention the weight gain and the tiredness and how I feel like a couch zombie. I think I'll stick to my salmon oil.

My younger sister, who has been on kidney dialysis for 16 years has had a change in personality and is saying nasty things against her close family members that have loved and cared for her. She doesn't seen any problems with her actions and seems unreachable-the "Oh, Well" and inappropiate laughter. She has been on Ambien for about 2 years now and has a had a profound change in what she says and does. She either straight out lies or has lost her memory of what she is doing. She has had spells of screaming profanities at the nursing staff at the kidney center.
Myself and another sister are worried sick but seem unable to get the doctor to keep her off Ambien.
I am a retired nurse but seem unable tohelp her as she can put up a pretty good front to others that don't know her well.
Betty