I'd say: None. Your aggression might go up, you may run the risk of gyno... but people like myself, E2, and others, hit 1000 mgs+ a week, with no side effects at all.
Eq is very mild.
Worry not.
Unless of course your body just responds differently to it, and you shit your liver out by week 8. But I've never heard of any EQ side effects actually occurring in someone besides gyno/aggression.