Stepdad symptoms and conditions

My mother is on Metoprolol Succ Er 50 MG Taast and Synthroid 100MCB @ 1 a day for thyroid. My stepfather told me he has been concerned about her for a long time. She seems to have episodes of delusion, paranoia & can occasionally be qiute vulgar and profane. These are far from characteristics of my mother. I told my step dad I would see what I could find out. Any info. on this would be greatly appreciated.

Desperate

I, too, thought I was crazy while on Yasmin and then on Yaz. I took Yasmin for 4 years until my doctor didn't have it and I was leaving on a trip and needed it so he gave me Yaz instead. I was paranoid, depressed, nauseas, etc. I also had horrible mood swings, which I never had before. My step dad died last year so I attributed a lot of my anger and other emotions to that, but now after reading all the other posts I believe all of this was caused by Yasmin. I was never like this before. I never acted like a crazy person before or was irritated by people. I am so thankful that I know it isn't me and it was the pill all along. Who knew such a small pill could cause that much drama.
When I started taking Yaz all of the symptoms got worse. Since I was only taking the pill to regulate my period and have lighter period, which never happened, I stopped taking the pill altogether. Since I stopped in August I have only had one natural period. I was really thinking I was pregnant for a bit because I was constantly sick to my stomach, had monster migraines, had to urinate a lot, and had cramps. I took a pregnancy test (even though it has been almost two years since I have had intercourse) and I am not pregnant. I went to my general practice doctor and he said that not having a period after you stop taking the pill is normal. I have missed two periods now and he says if it gets to the third one I should go see my gyn. Has anyone else had this problem? Is it indeed normal? When will my period come back (not that I am missing it, but I'd like to know what is going on in there).