What do I do about it?

This morning when I was sitting In my chair .My chest started hurting and i started to get violent chills and i felt cold and numb i felt like i was in the Freezer and my chest was hurting so much i couldn't breath correctly i was in so much pain. so i looked up my syn-toms and i got panic attack. My syn-toms and the things listed matched there was no doubt on my mind. What caused it was that my friend yelled at me and it really made me sad and basically he scared he crap out of me i don't like it when people yell at me he got mad at me hate losing friends my heart started to hurt then my whole chess and I was violently shaking it tok me 25 minutes to get a hold of myself. My mom was at work so i had to go through that alone. I tried to tell her bu she didnt belive me. Theres no way for me to get to doctor or anything so what I sapossed to do I have on of those parents that dissregard health problems. Ive allways had those syn-toms but today was the first time I actually had a full attack it was very painfull I thought I was gonna dies what do I do?