I "lied" about my mother's death to my online friends? T.T?

[faintclass641]

Okay so...I know this is really bad and you should NEVER lie about someone dying because that's totally not funny, I wasn't trying to be but let's just say I got home and before I got home I noticed a bad car crash and when I got home, door was locked, nobody was home and neither was her car, I was starting to worry that it might've been her so I did the most stupidest thing I climbed in the window and went on my computer, went on facebook and went all like "MY MOTHER DIED!!!!!!!!!!!!!!!!!!!!!!! NOOOOOOOOOO!!!!!!!!! STUPID DRIVERS!!!" and stuff like that and well.... I regret posting it. Now my online friends are concerned about it and they're asking me questions, I do in a way want to tell them the truth but to tell them would sound so stupid T___T I don't know why, I was just really worried and thought she died because when I got home nobody was there, not even the car was home and now I'm having to lie and say "I might have to live with my aunt now.." and now I'm thinking if I should try to make it seem like it's okay by saying something like "I got a phone call from the hospital, all three drivers are in critical care and my mom is doing a little okay.. I may have to stay with someone so she can recover, I thought she was really gone...." or something like that T_T yes, I am aware of how stupid that was of me to say on facebook when I wasn't even sure if it was her....I dont know what to do T_________T I want to fix this and stop worrying! I dont want my friends to think I'm an orphan (not that there's anything wrong with that of course) or if I 'accidently' tell them something my mom did to make me laugh they'd be like "I thought she was dead?..." >__< please help! I feel horrible already
Who could I ring when she doesn't have a cellphone? She wasn't going to anyone's house even, she just said she was going out, but not to a friend's house or anything T_T
The T_T's are suppose to be an anime person crying