You wrote:
"Current medical status: I recently had an upper endoscopy done because I felt like a had a lump in my throat. My neck always felt swollen and like somebody was strangling me. It"s difficult to swallow my saliva, but not food. Upper endoscopy found a hiatal hernia. Had an ultrasound to check size of my goiter, but it was normal and unlikely cause of symptoms."
A hiatus hernia can cause acid reflux and heartburn but is most likely not responsible for the sensation of having something (a lump or piece of hair) in the throat. It's important to note also that it's different to sense that your neck is swollen versus have diagnostic evidence that your throat really IS swollen. Further, swallowing solid food without the ability to swallow liquids is illogical. Rather, the opposite is possible (the ability to swallow liquids but not solid foods). You can consult an ENT specialist for a throat examination. If everything test OK, the remaining possibility is that you might be experiencing globus hystericus - a type of anxiety disorder where a patient thinks and feels that there is something in her throat.