This is just a guess, but you could be re-tracing. Detoxing usually happens in stages because if it happened all at once you'd be too overwhelmed. You detox some, feel awful, then feel better, then as your body senses it is strong enough, it is able to release more toxins. You feel cruddy again as you detox, and then once you have passed that, you feel better than you did before, and so on, until you are 100% (or as close as possible). I have no idea if this is what is happening, but it is at least worth consideration, especially if you had such a good initial result AND you haven't reverted back to old dietary habits. If you have added in some things b/c you felt cured, looking at those things may be another way to approach this.