What does it mean when i wake up in the morning and feel like vomiting but don't? and this happens sometimes when i'm ready to go to bed

Some thoughts...: The first thing that comes to mind is if you're having any reflux that's happening when you lay down. Often, if we eat too close to bedtime, gravity brings the stomach acid and food back up into the throat. This could cause burning and maybe some nausea. If it's persisting, you should check in with your doctor and get it checked out. Best of luck.