Sorry I am over an hour or two past your posting of this, but in the future you should know about vagal maneuvers. Assuming you are stable and no other compounding medical issues are occuring.
Specifically, the modified valsalva. Start by sitting on the ground or in a bed then, begin breathing out intensly while holding your mouth and nose closed for about 20 to 30 seconds, then quickly roll directly back onto your back and bring your knees up to your chest. Hold there for about 30 seconds. You should feel your heart rate drop into the normal range rapidly. If this does not work, try one of the other methods. Cold water on the face (diving method) is also a very common one done at home.
Sorry I am over an hour or two past your posting of this, but in the future you should know about vagal maneuvers. Assuming you are stable and no other compounding medical issues are occuring.
https://my.clevelandclinic.org/health/treatments/22227-vagal-maneuvers
Specifically, the modified valsalva. Start by sitting on the ground or in a bed then, begin breathing out intensly while holding your mouth and nose closed for about 20 to 30 seconds, then quickly roll directly back onto your back and bring your knees up to your chest. Hold there for about 30 seconds. You should feel your heart rate drop into the normal range rapidly. If this does not work, try one of the other methods. Cold water on the face (diving method) is also a very common one done at home.