How are you?
The sensation of lump in the throat is called globus hystericus. Globus hystericus is a subjective sensation where people feel a lump in the throat. At times, it is associated with difficulties swallowing. They are probably related to psychological problems. The most common cause is gastro esophageal reflux disease - GERD.
Diagnosis is by fibroptic laryngoscopy. Fiberoptic laryngoscopy also helps confirm the GERD diagnosis.
Try raising the head of your bed about four inches with blocks. It also might help to avoid eating or drinking for two hours before you lie down. To help control the stomach acid, one should not drink alcohol or drinks with caffeine in them, or eat chocolate or spicy or greasy foods .
Take some OTC antacid like Mylanta.You can also take zantac(ranitidine)or prilosec(omeprazole).These will help.Also keep your fluid electrolyte balance optimum by drinking lots of fluids.
If the symptoms still persist then pls consult an ENT specialist.
Hope it helps.Take care and pls do keep me posted if you have any additional doubts.