I'm Female And Will Be 61 This Year. Postmenopausal Since

I'm female and will be 61 this year. Postmenopausal since 2014. Having many muscle aches and pains all day long for about two years. Can't seem to get my thyroid regulated for the last 3 years. Memory loss very noticeable and getting worse. 2013 was diagnosed with cardiomyopathy E/F 25-30. Had a defibrillator implant the same year.
Am on meds for anxiety/depression/gout/high blood pressure/hypothyroid/ RLS. Don't take any vitamins. Could be lacking in that department. I suspect it could be caused by a few things but I'm not a doctor. Would you have any ideas or advise?