I was sitting in traffic and then suddenly my heart speeds up for a second, it was like BOOM BOOM BOOM BOOM like 5 or 6 super fast beats that sped up extremely fast, then it stopped and went back to normal. It also gave me a feeling of an adrenaline jolt. 

Has anyone else had this? It didn’t feel like my normal heart palpitations it just came out of nowhere this time I wasn’t even anxious or anything. It just scares me how it sped up like that out of nowhere for a second and then stopped. :(