Does anyone feel this after sex?

Just had an intense baby makin session with the hubby and after I was laying in the bed in front of the fan and felt a random weird shocking sensation all through the chest then it went away. But I’ve went into a panic attack. My spo2 oxygen level is at 97-99 and my heart was in the 100s but lowered to 68. Did I just get too hot and felt that crazy sensation!?