Is this normal or should I get it checked?

i noticed the side of my head slightly behind my temple twitches and pulses not constantly but sometimes i can feel it twitch more noticeable when wearing a headset like while listening to music but i am curious is this normal or not and what could cause these symptoms i am also a bit of a hypochondriac so i am worried it could be something more serious cause i have been having brain fog more often as well

Is this normal or should I get it checked?
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