I'm not sure if you're asking if others have the experience of their partner being hormonal while pregnant or if others have the experience of being hormonal themselves...but as a non-carrier, in my experience:
The hormones will come and go throughout pregnancy and, often, can be even stronger after pregnancy and throughout breast feeding, if your partner chooses to breast feed. It was really important for me, as the non-carrier, to find a way to come to peace with these hormones and remember that some of the things that my wife said were not actually "her" speaking. It's the hormones talking. It made my life easier to know that. My wife would often say later that she knew what she was saying was unfair, she just felt that she had absolutely no control in the moment. Know that your partner doesn't want to be taken over by the hormones, but it happens during such an incredible change.
As for "partner symptoms," I think they are entirely possible and real. I definitely cried more (happy and sad tears) during my wife's pregnancy. I didn't get angry, but instead would cry at the littlest things...so I imagine it's entirely possible. You are going through something huge as well, so whether the response is physical or emotional, it makes sense that your reactions to things would change.
As for another physical change, my cycle changed completely while my wife was pregnant. I figure, if that can happen, so can other symptoms!
I hope tomorrow is a better day for you!