Tbf, my brother absolutely freaks the fuck out if he goes too long without a joint. He acts more explosively angry than itching invisible bugs, but the feeling behind it is the same.
And after being through enough stop cycles with it I can tell you that there are physiological addiction issues with strong cannabis.
Loss of appetite, insomnia, pressured speech, sweating, night sweats, and irritability for up to seven to ten days is super common for people stopping regular usage and abusive usage.