Hiya past on and off for 2 hours. My heart rate keeps going from 70bmp to 125 to 130 bmp. I feel like am going really hot but my temperature is 35.9°c . I keep getting on and off chest pains either my left side of the chest then middle then my armpit. Am getting horrible headache and pain in my neck and jaw. And one minute i can feel my heart bouncing from my chest and belly and neck the next i dont and i feel pressure then chest pains again. I do suffer from severe gad and severe ptsd. Lows depression and highs . Panic attack disorder and anxitey but i feel really off and feel like am going to die... can someone help me or try calm me down if it is my anxiety as that this moment i dont know what to think no more and am feeling like given up and i have tryed by keeping my nind busy etc and nothing seems to be working