HI DUDE, AND WELCOME!!! Glad you are here!
When I first started MF, I made a point to eat something every two-three hours. Always saving a MF meal for mid-evening. I found that it really kept most of the hunger away. Your headaches will go away, also, as many have already mentioned.
The plan calls for us eating a meal within one hour of arising in the am. For a non-breakfast eater as myself, that was a bit difficult to face, in the beginning. Maybe a 9am, 12 noon, 3pm, 5pm Lean and Green, 7pm and 9pm schedule could work for you?
I wish you very good success in the MF program, and again, welcome! Joan