sitting

I find it crazy how I can sometimes sit in complete silence like today and stair at a wall for hours on end. All the while a variety of thoughts race through my brain due to my anxiety.
I grew up in a noisy house. TV always on or some noise going on and never thinking about the impact of silence. I don’t understand why I can go many days like this while others I have to go somewhere or be doing something to use the pent up anxious energy to stay out of my mind. It might be my meds or my hypomania with a combination of depression. Or I am that tiered.
Does anyone ever have those days where there is hours of sitting in silence stairing at nothing? Or am I just weird?