I furrowed my brow in my sleep, making the furrows look deep. Should I get Botox for my eyebrows?

I was shocked when I woke up to find two deep vertical lines etched between my eyebrows, as if I had buried my face in the pillow while sleeping. During the day, I tend to frown intensely whenever I focus on the monitor, so people around me frequently ask why I look so angry. Trying to consciously relax actually causes me so much stress that my head starts to ache. Since the wrinkles are already settling into my skin like scars, it seems like the urgent priority is to completely stabilize the muscles, but I am worried that getting Botox between my eyebrows might make my expression look awkwardly stiff. I am curious to hear your honest opinion on whether the shadowed lines that appear when I am at rest will definitely fade.