Why do my contacts still show up on my iPhone 5, but not on line?

I did not make any changes- but my contacts disappeared from Yahoo Mail when I'm on my computer - but do show up on my iphone. I can create the email on my iPhone, input the address, save draft, then open it on my computer to type the message. Clearly that is not convenient. What can i do? This is my primary email account- the addresses were created here.

  • Why is apple jumping straight to iphone 8 and not 7s and 7s plus? In the past we saw the 4s,5s,6s,3gs, etc. But why not 7s? Can you tell me why they might be skipping the s series? Or is the iphone 8 going to be called the iphone 7s?
  • Why does my iphone's screen not show but it still functions? I have a 3gs that still receives calls and functions with touch and calls and all, but the screen is blank. If i hold the home and power button together for a while, the Apple logo shows up for a quick second and the screen goes blank and the phone restarts (still functions after the reboot but screen is blank).So I don't know what the problem could be as the screen works perfectly when showing the apple logo, so now I'm confused. Somebody please help me
  • Why do my DELETED contacts still show up in my iPhone? When I go to "new message" and start typing a name it will show a DELETED contact's name. For instance, my friend changed his number. I deleted that contact & made a new one for him. Whenever I go to type a message, the old DELETED contact shows up with his new contact. IT IS So FRUSTRATING.
  • Why do deleted contacts show up on my Messages? I recently deleted some people from my contacts list on my iPhone 4 (iOS 6.0.1). I have cleared all of my text messages and when I type in a contact's name to send them a new message, for some reason, the names of these people I have deleted still show up with their numbers listed as "Other". Why is this?