Yang (Dark) Fire Tiger. According to Wikipedia, I have some traits that can be related with the Tiger's attributes.
Pisces. Looks like I pretty much fit the picture drawn here: http://astrological-sun-signs.suite101.com/article.cfm/pisces_personality_profile
... Except for the part about me picking up moods. I kinda DO pick up moods, but I tend to be the one instilling moods in others more often.
Also, I dunno where I heard this, & I can't get any info on it, but apparently the 2-fish symbol was originally a dolphin & a shark. It didn't necessarily signify sudden changes from between friendly peacefulness & aggressive viciousness. It rather signifies the sudden changes between 2 extremes in personality, or just simply constant change. Which fits me just fine.