Indirect method can cause insomnia?

[julio silva]

Hello

I'm regularly performing indirect method with a reasonable success, that has left me encouraged.
However, a problem has been occurred recently, I am facing insomnia crises. I usually fall asleep normally, but awake very early, and can no longer asleep. As a consequence, throughout the day, I feel myself very tired.

I am not sure this problem is related to the practices, but I am afraid practicing three times a week is creating difficult for me to sleep eight hours in those days I am not practicing.

I do not want to interrupt my practice, but I'm afraid to be harming my health.

Did someone face the same problem? How can I solve it?

kind regards,

Julio Silva