I suddenly had trouble swallowing and lost the reflex to swallow/All of a sudden she could not swallow, for a period of time had difficulty swallowing, the whole swallow reflex just disappeared; I suddenly had trouble swallowing and lost the reflex to swallow/All of a sudden she could not swallow, for a period of time had difficulty swallowing, the whole swallow reflex just disappeared; My throat was sore almost like laryngitis and it all went away; The day before my nose would run on and off; This is a spontaneous report from a contactable consumer, the patient (reported for self). A 70-years-old female patient received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, formulation: Solution for injection, Lot number: EN5318), via an unspecified route of administration, administered in Left arm on 03Feb2021 at 11:00 as dose 1, single (at the age of 70-years-old), for COVID-19 immunization. Medical history included Allergy to Sulfa drugs and Erythromycin. She reacts and gets hives with Sulfa drugs (Medication allergies). There was no family medical history relevant to adverse events. There were no concomitant medications. Prior Vaccinations (within 4 weeks) were none. The patient previously took erythromycin, and it caused her tongue to be swollen. There was no history of all previous immunization with the Pfizer vaccine considered as suspect. There were no additional vaccines administered on same date of the pfizer suspect. There were no adverse events following prior vaccinations. The patient stated that, on 06Feb2021, around 16:00 (04:00 pm), she was lying down watching tv, was not eating or drinking or doing anything, it just happened all of the sudden, she suddenly had trouble swallowing and lost the reflex to swallow/all of a sudden she could not swallow, for a period of time and had difficulty swallowing, the whole swallow reflex just disappeared and throat was sore almost like laryngitis and it all went away, lasted maybe about 30 minutes to an hour. It went away but it was so scary. She kept trying to swallow but was unable to for about 30 minutes (reported as "I suddenly had trouble swallowing and lost the reflex to swallow/All of a sudden she could not swallow, for a period of time had difficulty swallowing, the whole swallow reflex just disappeared"). On an unknown date in Feb2021, day before her nose would run on and off. She had not eaten anything there had been no introduction of any new foods or anything in her life. She was concerned about should she or should she not be a candidate for the second vaccine, should she still get the second dose relative to this event. She just went to the dentist a few weeks ago, date unknown other than in Jan2021 she thinks. The adverse events did not result in emergency room or physician office visit. The patient was not hospitalized for the events. She talked to an allergist who emailed patient back yesterday and recommended patient follow-up with her over the phone. Relevant Tests were none. The outcome for the event "the day before my nose would run on and off" was unknown and the outcome for the rest of the events was recovered on the same day, i.e., 06Feb2021.  Follow-up attempts completed. No further information expected.