Letrozole cause headaches?

I really think this is my cycle you guys but I’m desperately trying not to get my hopes up since I’m going on 3 years of BFNs.

I’ve been experiencing different symptoms this cycle than usual.

One of them is migraine headaches, specifically ocular migraines. Hot flashes have also popped up this cycle. And some EXTREME fatigue as well as more sore boobs for longer this cycle.

I’m one day away from expected period, 13DPO.

My only concern is that this cycle I was bumped from 5mg to 7.5mg and my dr said perhaps the headaches were caused by the switch.

I’m not testing until Friday per their orders.

Just wondering if anyone was bumped in dosage and had weird symptoms. Or if you actually fell pregnant!!! Thanks