Period 11 days early for the last 3 months , peri?

[MiserableButLovesFood]

I'm 37, gaining weight, and my periods for the past 3 months have been early by 10-11 days, which is very frustrating!
I'm also not expecting it, so I'm angry and emotional and I don't know why until the next day ... ah ha!

Is this my first sign?

I have not a clue but my periods were like clock work.
Im now 37 and for the past 2 year i never know when they will arrive never on the same date ive gone from a full 6 day bleed to 3-4 days light bleed now.
Hot one second cold the next.
And i have developed in the last year migraines.
Little things get on my nerves but i do stay calm.
Anxiety thats a nice one comes and goes.
Brain fog thats nice to have NOT.
Im not much help but i feel the same.
I did have a doctor tell me once that peri can start at 30 cases of it being younger.
Also a lovely lady at boots said she started peri at 27 by the time she was 38 she was in the mix of it at 49 she was over it done and dusted i can only wish for it to be that fast.