Hang in there!!!
Yesterday was my restart Day 1 and I know how you feel! I had the dull headache too. I spaced my meals closer together and kept a supplement in the "hole" By time I finished 1 I was shaking another and letting it stand to thicken. When I was hungry (usually every hour and a half) I'd drink it. I also had 2 fast soups and in the second one I put 10 cut green beans (canned) in it and that was really good. I just cut back on my veggie serving for my meal. I still ended up with 5 supplements, 2 fast soups and 1 meal for the day so you dont necessarily have to overeat if you have some of the "free" foods available.
Today (day 2) I feel much better and my meals are spacing better. Also I've been really busy today so no time to dwell on being hungry. (which tells me much of Day 1 was in my head)
I have been stressed as heck today but I am determined to hang in there!