Hi,
The usual overdosage effects of
Advil are gastric irritation, difficulty in respiration,
coma, seizures,
leukocytosis (increase in white blood cells) and
renal failure. But there is nothing related to your periods.
I personally think that the 1000mg you have taken would probably have not caused any serious complications but it is better to undergo physical consultation with your doctor as well.
Take Care!