Just took a cannabis gummy and am having chest tightness and neck tightness (both on the right side) has anyone ever felt this, and is it a sign of concern or just my anxiety acting up?

I just had a really awful chest pain that felt like my chest was exploding and im really terrified. I feel like maybe it was a heart attack but idk. I've had many ekgs and a chest x ray and they don't find anything wrong with me. Idk what this means anymore im so sick of being scared that ill die. Can anyone relate at all? It comes out of nowhere

PLEASEEE READ!! I know this sounds ridiculous but lately I’ve been soo hyperfocused on my breathing. I feel like I’m not breathing right/properly, it’s hard to explain.. it just feels wrong or like my breathing pattern is wrong. How that’s possible? I have no clue. I’ve had this all day. Has anyone ever experienced this?? My doctor keeps saying anxiety but I just feel like something isn’t right.

I was just lying on my bed and i felt mh heart stop for a second and it felt like it was beinb squeezed. Im freaking out this has never happened before