Tc, the fact that your migraines have subsided would suggest you have achieved hormone stability which is great. As you probably know, migraines and mood are closely linked.
Fluctuating hormones are bad news for migraine sufferers and according to my migraine specialist, migraines with aura are caused by oestrogen spikes (sometimes referred to as oestrogen dominance) and migraines without aura (often the painful, sickly variety) are caused by sudden drops in oestrogen. Obviously hormone stability is a must for both types of migraine.
The headaches could be a sign of low (low for you that is) oestrogen levels so it might be worth topping up if you can and see if the headaches and other symptoms subside.
Like BeaR says, it's so nice to hear some good news for a change!