Talk to Dermatologist on Red Lines On Forehead

I have this problem for quite sometime. This happens to be randomly as shown in the picture. I get these red lines on my forehead. I personally think this could be due to tiredness or lack of sleep. They remain there for 2-3 days and then vanish. I just want to know if there is anything to worry about? I tried searching over internet but could not find anything. There is no pain as such.