Is it possible to have different pms symptoms from month to month? What are all your experiences?

Normally I'd have tender boobs and acne, and be an emotional wreck 2 or 3 days before my AF. This month the tender boobs started about 5 days ago (much sooner than normal) and I've been a tiny bit nauseas coupled with a headache (not typical for be at all) 3 days now.

I do recall with my 2nd pregnancy the persistent headache is what made me go take a pregnancy test, at a time we weren't trying at all.

I know each of these could be pms symptoms and not pregnancy but because it's not normal "for me", I'm wondering if pms could be different from time to time.

I am 8DPO, AF is due tomorrow and pregnancy test says negative.