Hi Sergio, it is normal to experience tiredness, even exhaustion when you are going through die off. Whether it's from the cleanse or the diet or both. It would probably be a bit strange if you didn't.

When the body is trying to heal, it's energies are working on the areas that need attention, so your energy output and muscular strength usually weaken substantially because the energies are working on other matters, and you can interpret this as getting worse.....when you maybe getting better from the inside out.

Sometimes you had to ride this out, there is not always a way around it. But make sure you are having enough fats, which can help for energy like butter and even organic virgin coconut oil (you can eat these just as they are, as well as use the in cooking).

You can also get yourself a good celtic sea salt and make yourself a drink with it, by using about quarter of a lemon (you can add vitamin C powder to that for taste, like a teaspoon) and then add quarter teaspoon of this good salt and mix. You can have it either hot or cold. I usually have that, put in some cold water at the bottom and fill it up with boiling water so it's very warm or nearly hot.

This is very good for you and apparently good for the adrenals also, as well as digestion etc.

Drink herbal teas like ginger tea, licorich tea, etc. Good for adrenals also.

But mainly you need to rest too, it's just part of it all. This is why some people cannot stand to go through it because they do not like the die off symptoms, so often give up. Also it takes time, so that doesn't help. But don't give up!

Sorry I can't be of more help, perhaps someone else can. But to be honest I don't know of many people that go through die off "symptom free" and tiredness if the most common symptom I've heard.