I dont understand

My mom is premenopausal (age 52 in a few months) and I can't stand her sometimes, but I understand it's all hormones so I try to not let it bother me too much.

She acts like a completely different person sometimes. She used to be a very patient and understanding woman, and now she is just irritable all of the time.

For example, we have these two palm trees in our yard and one gives off a lot of dates (I think that's what they're called). They just fall to the ground and we don't bother picking them up. This year because of the heat I assume, they are smelling up that area and attracting a lot of flies and my mom just went crazy obsessing over it and getting very mad. It has been like that for months and all of a sudden she's in a snappy mood. Legit, we stepped outside with the dog, she saw the fruit, and something in her head just flipped.

She has been on and off doing that (obsessing over small thing) for the past year. She raises her voice a lot when she's irritated and I hate it. I even brought it to her attention that she does these things and she got mad at me. I was just calmly talking to her trying to understand. We've always talked things out with each other. If she was upset or mad I'd be able to talk to her about whatever is going on and within a 5 minutes she's be okay again.

I love my mom and I love living with her, but I dont understand how to help or what to do because everything I do or say just seems to be wrong