My email Yahoo account. Whats wrong??

Philippines
@ozzeth (942)
April 28, 2008 9:43pm CST
What ah! My friend said he sent me an email..But i never received any. And i just noticed, I didn't received any NEW EMAILS of my yahoo account since yesterday. Whats wrong? What is this? How can it be? Is anyone have an idea about this? GRRRR...