I will normally suggest customer to take half sachet with 70ml water on first week to let ur body get used on the product.Do you drink enough water everyday?You suppose to drink 2-3 litre water to let it can do the metabolism process.

Insomnia and dizziness causes and solutions during weight loss for each individual customer.
The formation of fat: food → calories → glucose → glycogen → fats

The decomposition process of Fat: Fatty liver glycogen → glucose → calories → water, CO2, intoxicated oil out of three lipid metabolism in vitro. Since we are a passive rapid weight loss, fat decomposition process will lead to the loss of blood sugar due to the different individual differences, there is a slight dizziness is normal.
(a)General course of time with simple obesity is accumulated, weight-loss treatment process, the short-term weight loss, a variety of internal organs function, nerve Daily is running a large number of energy consumption of fat, and will therefore result in a short period of insomnia, This is only temporary, will disappear after weight loss.
The solution: take a cup of milk at the same time to do some head massage.
(b)The weight and consumption of coffee will also be time to sleep properly.
The solution: conditioning a good lifestyle.
©Customers with low blood sugar, low blood pressure also appear dizziness.
The solution: take some amount of glucose water.
(d)Because the customer did not take salt intake of food, the body will also have dizziness phenomenon of the lack of salt.
The solution: take a cup of salt water or eat a light cold cucumber dish.

It not suggest take during period is because our body need some cool down period during weight loss.we wont loss weight everyday.beside that during period actually all nutrition taken will not be absorb by or body so why dont let our body have some rest during this period.Please let me know your progress from time to time ya.