I know exactly what you mean. I stepped up to 4 today too, and again, no afternoon cravings. Today, I didn't even get the thought of food. I'm still satisfied from lunch and that was nearly 4 hours ago.
I also haven't been bloating as much, and last night I didn't accumulate nearly as much sinus congestion. My white coating came right off this AM with brushing, didn't even use the oregano oil today. I plan to try my neem oil in my OP tomorrow. And I haven't had as much drainage during the day today, as well.
I woke up this morning much earlier than usual, and even did a bit of rebounding. It is all quite surprising for me. I'm a bit disheartened that I have moved up to 4, but I'm really pleased with the results so far. I will try one more meal at 4 and if there is no burn, I guess I will be up to 5 tomorrow.