Hello. I've a question about hormones (who doesn't

)
This one is just about physical issues.
For the past 7 years or so, I used to get a piercing headache the day or so before my period started. Once it started the headache would go, I'd feel huge relief. This was along with my usual PMT symptoms, crushing fatigue for a couple of days and pains down my thighs. All the while I wasn't using any hormonal contraception.
Now I get that piercing headache behind one or both eyes, I think it could be classed as a migraine maybe, during my period.
This is while I'm using a 50mcg oestrogen patch.
Is that caused by progesterone withdrawal, or even low prog? It was very low in successive day 21 bloods.
I'm trying to piece together a picture and plan for when I see the gynae next.
I'd thought my symptoms were down to falling oestrogen but now I'm wondering if the fall in prog is also causing these issues. Of which I have too many at the moment!