What Did Blogger Do?

Last night I went on my blog and 3 months had disappeared completely.  Luckily it was still on Google Reader so I copied and pasted most of it back;   Has anything like that happened before, and is there a more dependable blog than blogger?  I've had my blog about 3 years and mostly I've been happy.  How can you complain too much about free, but when big chunks disappear it's kind of scary.  There's nothing earth shattering to lose, but it is a diary of sorts and I'd hate to lose it all.  
Candace