Talent on hit spell won't stop hitting myself(while still)

[realm087]

Hi there, I've been playing an Arcane Blade and I'm dual wielding Life Drinkers, wich give me a 20% chance to cast Blood Grasp on talent hit(spell). The problem is, the blood grasp projectiles won't stop hitting me all the time, even when I'm standing still doing absolutely nothing. I have Thunderstorm on so it keeps triggering the blood graps, and I have even died to it some times now. It happens 50% of the casts, it's a really ugly bug, please help.