You aren’t the only one. I still have followers, following and tweet count… etc… but my timeline is totally empty. I love the internet. Feels good to find others with same issue. =) Sorry you are having it. It’s likely a short-term caching glitch?
edit: I had been down about an hour. I just refreshed and voila. They were gone from both my phone and desktop, but now it’s randomly all back. Right after I enter a support ticket. LOL.
Here’s a form: https://support.twitter.com/forms/