Can't eat food anymore, anything more than one bite makes me feel a lump in my throat, scratchiness and like it's coming back up, what could this be?

See a doctor: This sounds like you may have a blockage in your esophagus. Please see your doctor right away. They will do some testing and you may need a referral to a gastroenterologist. This sounds serious. Please see a doctor as soon as possible.

Dysphagia: You're having difficulty transferring food from your mouth to your pharynx or from your pharynx to your esophagus. Another possibility is GERD and/or esophageal dysfunction. Sometimes a pouch or diverticulum in the throat is the problem. If symptoms persist see an otolaryngologist or a gastroenterologist for evaluation and further testing if needed.