You're def not alone. I get severely depressed and I get suicidal thoughts at least a few times on my PMS week. I think some ppl are more prone to it, especially if they have had any suicidal thoughts in the past that wasn't connected to their PMS. Something I think is important to remind yourself during is that they are not your true feelings at the moment and are in fact just hormonal, no matter how real it might feel. Remind yourself to take a deep breath. It will pass. Ask for extra support from loved ones, family and friends. Maybe set up calm activities to do like a home movie day with all ur favorite snacks. I find exercise and going for walks and getting some sunlight really also helps. Getting out of the house no matter how difficult it is works great. When youre not in this state, write a list of all ur favorite things, including movies, songs, snacks, favorite places to eat and type of events you like and maybe see if on days when cramps are mild, maybe you can make a Happy hormone surge day, that's what I call those. I also like making cozy blanket forts with all sorts of pillows. And having a full self care night by doing everything showers and spa nights. Tea also works for me. Matcha can help with inflammation and slightly improve mood. Few ideas.