Metoprolol Tartrate and nightmares

MY 76 year old mother, on hbp meds for 30 years,METOPROLOL, for quite a few years now ,And she complains of severe pain in her shins, NIGHTMARES, for years now to her Dr. Lately she has been having fainting spells, and at times has short term memmory loss, The Dr did cut her metoprolol in half. dreams aren't as bad, She is going to have a D&C due to uterine polyop, all of this has sent me to the internet researching all the meds she is on, I feel bad I haven't done this research sooner, I just thought the doctors know???? Please we need to do our homework, research and take responsibility, for our health and those we Love.. I have been cooking and shopping for her past month, Lots of RAW fruits and vegetables,garlic and other healthy, herbs and oils, she has lost 10 lbs, bp has dropped 135/70 was 155/90 she is now down to 210 lbs, 5 ft, Im hoping the Dr. will take her off the metoprolol soon

I have been taking Metoprolol for a year now at 100mg/day. I have not experienced one adverse side effect. The drug works fine as it is intended. It seems to me that people should be telling their physicians of any problems they are experiencing rather than posting on an internet blog. Some of these posted side effects are likely symptoms of the underlying disease instead of a side effect of the drug they are taking.

leg cramping. Don't know if it is normal to experience these cramps. Has anyone else had them?