Lately i've been feeling this strain in the area between my eyebrows and a little up(that's the third eye right?) It feels like i was pulling my eyebrows up all day and the muscles are tired. If you don't know what Im talking about then it feels like I've been doing this minus the eyes, to my eyebrows, thus affecting that area.

I usually feel it during nighttime and it's getting tiresome. I even completely relax that area when I do experience this, but I still feel it. I don't know what the hell this is or what's causing it and I don't think it's stress since I haven't experienced any since almost a month ago(summer vacation starting)

ANY suggestions or input will be appreciated. I'm pretty much desperate at this point