headache; horrible pain in her armpit and it swell up, whole area was swollen like part of her mammary gland, the middle of the armpit not quite to the breast but she mean the whole area was raised, swollen; horrible pain in my armpit and it swell up; whole area was swollen like part of my mammary gland; the middle of the armpit not quite to the breast but I mean the whole area was raised, swollen; it just hurt where she got the shot which she expected and then exclusive to the armpit; This is a spontaneous report from a contactable Other HCP (patient). A 65-year-old female patient received BNT162b2 (PFIZER BIONTECH COVID-19 mRNA VACCINE, Solution for injection, Lot number- EW0178, Expiration date: Aug2021) via an unspecified route of administration in left deltoid on 30May2021 as 2nd dose, single dose for COVID-19 immunization. Medical history included asthma, osteoarthritis, pre-diabetic, increased cholesterol, barrett's oesophagus, hyporthyroid. Concomitant medications included levothyroxine at 25 microgram, pantoprazole once a day for Barrett's esophagus, rosuvastatin calcium (CRESTOR) at 5 mg for increased cholesterol. Historical vaccine included BNT162b2 (PFIZER BIONTECH COVID-19 mRNA VACCINE, Solution for injection, Lot number- unknown) via an unspecified route of administration on 09May2021 in left deltoid as 1st dose, single dose for COVID-19 immunization. Registered nurse stated, So, I recently had the second Covid-19 shot and I wanted to report something that I went through within 24 hours and last 2 days. I had the second shot on 30May2021 and aside from the headache which did not surprised me within 24 hours I had a horrible pain in my armpit and it swell up like not like node like the whole area was swollen like part of my mammary gland it's like from the middle of the armpit unto the breast. I took that back the middle of the armpit not quite to the breast but I mean the whole area was raised, swollen and last two days cause vaccinated on Sunday I started noticing it early morning Sunday happened to be in the middle of the night and then it lasted all through Monday and Tuesday and finally started going away Wednesday and today right now it's back to normal at first I did not think much of it but then I realized that I mean I never have that happened before and that was of the same left arm where I got the Covid shot but it did not hurt from the deltoid around to the arm pit. It just hurt where I got the shot which I expected and then exclusive to the armpit so I did not know if that something was on record so that is why I was reporting. When probed for mailing address, registered nurse started, I was not sure what you were asking okay its (Withheld) okay I was just wondering why you wanted my physical street name. Okay but I did not get any mail at (Withheld) so that's not gonna help you at all my mailing address was (Withheld) let's start again my mailing address was (Withheld). Registered nurse stated, date of adverse event started, Well I guess in the middle night that would be 31st Monday the 31st Memorial day. (Clarified as 31may2021). When probed for facility's Zip-code: Registered nurse stated, I did not know would it be on the Pfizer card maybe are you gonna ask me like LOT numbers or whatever I should go get the card let me grab the card okay let me see I guess I could look it up let's see (Withheld). When probed for facility's email address, registered nurse stated, "I did not know email let me see if they had that I did not know if I can find there email. When confirmed the vaccine as Pfizer Covid vaccine, registered nurse stated, "I am yeah, can I ask a question from you real quick you said you were a pharmacist correct so I was wondering you know it's a multi dose vial and I am a nurse so I don't really like multi dose vial so the first time I went in there I asked them for the first shot for the vial and the next time I went in there it was a different nurse practitioner she had all the stuff already drawn up which I really like so you know I know I was administering stuff have given like lots of shots over 40 year career if you don't turn it upside and look around the last dose of the vial could be more potent could it not. Registered nurse was informed about the role of Pfizer medical Information. When probed about the date of first shot, patient stated, First shot was on 09May2021. (Consumed as 09may2021). Patient stated, I did not know what that is NDC and UPC. I did not have any of the code on this card that's all on there I gave you the EW code and of course the first dose has the different code.: Patient stated, anatomical site of the administration was left deltoid. I had them both on the left deltoid obviously not on the exact same spot but. Patient further stated, I can not think of any other reason I mean it was just too coincidental yes. I mean it was given 24 hours of receiving end and it went away within 2 days later so yeah I would yes say I would so. When probed about other medical conditions, Patient stated, Well I can not say I am suffering from anything but I do have a history of asthma cause its not you know I was not even taking medicines for it. It's not an issue so I would say asthma I do have a history of asthma and osteomyelitis in my knees I mean not Osteomyelitis, Osteoarthritis in my knees. I am Prediabetic. I had got you know increased cholesterol and hyporthyroid. I was taking thyroid medicine and cholesterol medicine and pantoprazole for very minimal Barrett's esophagus problem. Patient stated, No I was not taking any asthma controller drug you know what I did use inhaler but when was it you know what I had not used inhaler within that time period at all. So, I would say nothing for asthma. I forget the Venlafaxine, Effexor I take it extended release which like 150, once a day. Patient stated No, but I did take Tylenol (Treatment)that day 1000 mg cause my arms hurt pretty good yeah I took Tylenol that day specifically. Still experiencing these events, registered nurse stated, "I was up until this morning like it's slowly getting better and like right now it's fine it actually fine today. I would say like 3 O' clock on the morning on to the 31st then the first and second and a little bit yesterday. It is completely gone now as of today. Patient confirmed outcome as improved. Patient further stated, No just Acetaminophen 1000 mg I only took, actually I took it twice within 6 hours of each other. The reported mentioned causality as related for all the reported events with respect to Covid 19 vaccine. The outcome of the events was recovered on an unspecified date in 2021.