10 ways to say I'm worried

10 ways to say - I'm worried: 1. I'm (so) worried about.. 2. I'm afraid... 3. I can't help thinking... 4. I can't stop thinking about it. 5. I've been worried sick about... 6. It's been keeping me awake at night. 7. I'm scared stiff / to death that... 8. I'm really nervous. 9. I've got butterflies in my stomach. 10. I'm absolutely dreading..