I haven't had the excessive hunger symptom you describe. I have occasionally had symptoms related to being hungry, like dizziness and irritability which go away when I eat. This usually happens when I break the diet.
Don't be surprised if you find yourself on something of a symptom roller coaster. For me it often happens that symptoms return unexpectedly. Sometimes I can figure out why they've returned (breaking my diet, for example) but sometimes I can't. The symptoms then go away without warning too. And, with chelating, they've generally become less and less over time.
I'm afraid it's a not unusual part of the process.