Lifetime member symptoms and conditions

55 year old female
I have been on Toprol 5 years. 50mg. it works for me but since it went generic,I wonder...I am on 10mg lexapro and December started the vivelle-dot for my hotflashes. It is now June and the last 4 weeks my hair is falling out big time.
It is so thin I have to wear a scarf as not to scare small children at work.!! :)
I have talked to a couple of hairdressers and they have told me many of they're clients with thinning hair were on Toprol.
Anyone heard of this? Please help me figure this out.