I have had these experience since about 10 yrs old. Howver, my pulse when relaxed is very low and my blood pressure is tries to the day almost bordine high in the am, by noon it is low, by 7:is is almost too low to read. My pulse stays generally low but irractic, with pikes out of nowhere.
Do you feel warmer or sweat a little more? Do you shake, not like the chills, but hard shaking? What time of day have thies episodes happened? If you remeber anything, I might be able to help you allittle.
What problem bothers you the most: cardiac/ then the to wear a monitor for a week and they can telll you weather it is normal, abnoral, or what my husband calls - since he has is -fast heat. Fast hert is stress related, generally not what is about to happen but the nature of your world. It is not dangerous and they tell you to exercise, try yoga, and work less.