Day 17 - Low-grade headaches

So I wonder if others experienced it. I think I have a low grade headache all the time. It is not strong and if I am focused on something I do not notice it. But when I relaxin the evening I feel it. Like a pressure on the sides on my head. I kept sensing it every evening. Can’t say for sure if it is there in the morning or at work as my morning and work are very dynamic and I just do not feel things.

Does anyone have those annoying headaches in their third week on abstinence?