I'm sorry you've been having headaches. I've never heard of someone having physical withdrawal symptoms three months after staying sober, but I might be wrong. Might it be stress related due to the fact you're not pouring alcohol on your feelings anymore? Possibly the pollen in the air? (It's supposed to be an especially bad year for pollen in our neck of the woods due to the long, harsh winter.)

In any event, I hope your headaches disappear soon.