This happened more than once and I notice this seems to happen while I'm exercising as well, but not at the beginning of the exercise, but after 30 minutes maybe, but during sexual stimulation it starts almost from the beginning of the stimulation and at ejaculation my heart just skips beats, like 2 or 3 times, I feel it in my chest, its scary, now what I'm trying to ask has anyone else experience such a thing? it also happens during masturbation when I'm close to orgasm and very much exited it happens, right at the peak of pleasure when I'm ejaculating it happens, my heart would stop or the rhythm itself is irregular, very intense, my body tells me if continue the orgasm and did not interrupt it my heart will stop, so I literally don't have any pleasure anymore, all my orgasms are stopped due to whats happening at ejaculation, I stop them and lose erection as well, but that's not what I care about really right now, what I want to know what is going on? I did sereis of test EKG and Echo and blood work, also Holter last year and came back fine, as for the EKG and Echo they were done last month, any ideas please? thank you.