Iphone virus/ I don't know what to do. Please help. :(?

I have the iphone 3Gs and something is wrong with it. Yesterday, anytime i would try to go into safari for yahoo or something, it wouldnt open the window.... once safari was opened, it showed a blank white loading screen then blacked out. everything else on my phone was fine, and it wasnt the internet connection because anything that used internet opened flawlessly. I got so tired of it, that I just thought maybe turning it off and rebooting it would help... No that i tried turning it back on, its been a blank black screen with the little loading symbol going around and around for approximately 20 hours; all night and half of the day. i tried plugging it into my itunes account ot see if that would help, but my itunes account REJECTED the iphone due to an "error". I have school today and I need to keep in touch with my parents, and I have no idea how to get my phone to work. I honestly dont want to restore it, because then im going to lose all of my contacts that i didnt save, and my computer wont even let me plug it in so i'm clueless at this point. PLEASE SHARE YOUR KNOWLEDGE; IM ABOUT TO GO CRAZY. Thank you SOSOSOSOSSOSOSO much to anyone who posts right now.!!!!!