I feel horrible for always being angry at my mom

I dont know if its hormones or teen angst but i feel this anger and irritation around my mom and i dont know why. When i was younger i loved being around her and now i get angry by her being near me.

I sound really bad and feel so guilty but it just happens and if i give my mom attitude i always apologize afterwards. But i dont know how to make it stop.

I dont like when she looks and me or is near me. Maybe because our house is small so it feels like i have no space? And maybe i dont like when she looks at me because of how judgemental she can be? I dont know but i just feel awful and i hate making my mom feel awful and i dont know why im so angry and what do i do to stop?