Heart rate through the roof with heart palpitations

I just got a Fenix 7 pro and went out for an easy run. Throughout my life, I sometimes have these heart palpitations where I feel a bit dizzy, even during light exercise. I consider myself quite fit, running several times a week.

Is this a problem with the watch? Should I be concerned about these heart palpitations? They happen very rarely (maybe once or twice a year) usually when I am dehydrated or hungry. I usually just ease off and they go away. This is the first time I have had it while running, it is more common during hiking or sport.

Thanks!