I think all of us have gone through this once we decide to get serious about losing the weight and changing our lives.
I have always commented that I never really noticed the food commercials until I decided I wasn't going to have something they were showing.
We are very food oriented society too. Some people would say we are obsessed about that too.
Right now, you are going from one extreme to what "feels like" another extreme.
Once you get this down to a pattern and it becomes habit (and it will) then you start looking at food and meals as something you do in between the rest of your life---not the only thing you do in your life.
I agree with the other suggestions here. GET BUSY! Do any NON-FOOD activities that will keep both hands busy.
Eventually, you will "make peace" with food. Please try to be patient with yourself.
As for the headache, take aspirin or Tylenol. That's what they are there for!
Good luck and don't give up!