Unfortunately, our PMS and bipolar make it hard to say if it is our disorder or both combined.
As I got older PMS wasn't too bad as the younger days, I was a total witch
I do find over the past 4-5 years I've been on mood stabilizers, the PMS is tolerable, but now istead of being a witch for those 2 weeks, I get very tired (always did before) and melancholy then it passes, when it doesn't I get nervous thiking the meds aren't working, so I endure that drop in mood.
If it does get intese then I would call the pdoc. just to be certain if a med change or dosage change is needed.
Ah, these damn hormoes and the changes, I mean this for the young girls and middle aged ones (me) ha!ha!

Take care,

DE