i think my thc edible was spiked

i took a 30 mg thc edible thinking i would just get a little buzz (i am new to thc) i had insane anxiety and paranoia at first then my body felt like it was on fire. my heart was racing so fast i thought my chest was lava. after that it felt like sawblades were trying to rip and push out of my skin. I thought i was going to die that night and just wanted it to end. so much pain. i’ve looked all over reddit and no one has described anything like i felt. someone please tell me what happened.

Edit: Thanks for all the info. I know it’s a stupid question i’m just new and didn’t know.