I went through menopause just a few years ago. It threw everything into an upheaval. Thank goodness I didn’t have a partner to be like this to, but therapy definitely helped. She is absolutely going through a lot, physically and mentally, and will be for years. I still have hot flash episodes for weeks at a time and it’s always different.
Your feelings are valid. You have every right to them. Just because someone is going through chemical changes in their body doesn’t mean they can abuse you like this. Telling you that you have no right to your feelings is emotional abuse and she has no right to do that to you. You both need help to get through this, whether separate or together, but this is all new and for you to be told to sit down and shut up is just heartbreaking. Everything happening to her is also happening to you because it seems to me that she’s taking it all out on you and yeah, that affects you.
You are not dumb or stupid. You are caring and sympathetic to what she’s going through, and she reacts to this with hostility and arrogance. I can’t imagine anyone is obligated to put up with that from anyone, for any reason. It might change in time, but not if she never acknowledges the validity of your feelings and your right to have them.
I’m so sorry this is happening to you.
If she’s been like this before she underwent all this, then she was already treating you very badly and recent events only made it worse. I’m not any kind of doctor so I won’t throw around diagnoses, but I recognize these behaviors from other people describing what they’ve experienced from people who were emotionally and physically abusing them. I’ve also experienced some myself from being emotionally abused and neglected.
This sounds like abuse to me. You are being abused and manipulated maliciously and therapy can help you get through this. I was diagnosed with cPTSD, complex post traumatic stress disorder, which is PTSD that happens after long term trauma (especially in childhood, which is mine). Years with an abusive partner could definitely affect you this way.
You deserve a life of happiness. The sooner you get into therapy, the sooner you can get to happiness, or at least away from abuse. You are not going to change her.