Appraisal... I hate you!

So, we found out today that our appraisal came in low. It's the thing I had completely forgotten about, I wasn't worried about it, or anything. And now it comes in low. And not just $5000 under, $25,000 under the price we negotiated. I haven't gotten any answers from our realtor or our loan officers, but if our FHA loan isn't willing to cover anything over the appraised value, we might not be getting a house. We can't afford to pay the difference out of pocket, we just don't have that money. We can barely cover the closing costs and down-payment. This is completely fucked up!
In other news, I stayed home sick today with the worst stomach ache in history. And I ended up sleeping most of the day until our realtor called to tell me about the appraisal.