I never had premature ejaculation before starting luvox (fluvoxamine). was on it for 3 yrs and pe developed after quitting it. is it post ssri sexual dysfunction?

Not likely: New premature ejaculation after stopping ssri's is thus far not a researched problem. So, it's unknown how many (if any) people may have experienced this problem or the length of time it lasted. I suggest reporting it to your physician, and seeing about other-than-pharmaceutical ways to deal with this. Hoping you're doing well with the condition requiring Luvox (fluvoxamine) in the first place, too.

PE: Wondering if you are taking any supplements or herbal products that could be factors, otherwise I am not aware of such withdrawal effect. Research it with your doctor.