I am feeling like, I have a golf sized ball under my arm with my lymphoid. So I am looking at the paper work and it says that, I would experience some swelling.; I experienced some discomfort on ''pretty'' part of my arm, where I got the shot; I experienced some discomfort on ''pretty'' part of my arm, where I got the shot; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 61 year-old female patient received bnt162b2 (BNT162B2), administration date 08Dec2021 (Batch/Lot number: unknown) at the age of 61 years as dose 3 (booster), single for covid-19 immunisation; hydrochlorothiazide (HYDROCHLOROTHIAZIDE) (Batch/Lot number: unknown) for hypertension. Relevant medical history included: "Hypertension" (unspecified if ongoing), notes: Verbatim: Hypertension. The patient took concomitant medications. Vaccination history included: Bnt162b2 (DOSE:1, Lot number:EN6208), administration date: 15Mar2021, when the patient was 60 years old, for Covid-19 immunization; Bnt162b2 (DOSE:2, Lot number:ER8733), administration date: 05Apr2021, when the patient was 60 years old, for Covid-19 immunization. The following information was reported: LYMPHADENOPATHY (non-serious) with onset 08Dec2021, outcome "unknown", described as "I am feeling like, I have a golf sized ball under my arm with my lymphoid. So I am looking at the paper work and it says that, I would experience some swelling."; VACCINATION SITE DISCOMFORT (non-serious), LIMB DISCOMFORT (non-serious) all with onset 08Dec2021, outcome "unknown" and all described as "I experienced some discomfort on ''pretty'' part of my arm, where I got the shot". Therapeutic measures were taken as a result of lymphadenopathy, vaccination site discomfort, limb discomfort.  Additional information: Consumer stated, No Lab Tests performed, "Well, she received the booster shot on Wednesday and of course you know, she experienced some discomfort on 'pretty' part of her arm where she got the shot in but later on, in the night, she started feeling it in her underarms so, ever since Wednesday. Now I am feeling like I have a golf sized ball under my arm with my lymphoid. So I am looking at the paper work and it says that, I would experience some swelling. So, she want to know is there anything that she can do. she saw where she can put heat pack underneath or a hot towel, wet towel underneath but she also saw that if she took some antibiotics 'that does' may help so, she want to know what is, that she can do to relieve this discomfort?" Patient did not any other vaccine taken during vaccination period. Patient confirmed that the facility was same for both previous shots. When probed if the facility was same for the booster shot as well: Consumer stated, No. It was close, it was cancelled so, she couldn't go there. Let her see, if she can give you the information where she got the booster shot. The address is (address) and she don't have the zip code. She was sorry, she got the zip code #." Patient further stated, "No. she was not going to do that, it's not that kind of emergency. She don't want to go to the hospital. She just want to know, what it is, that she can take. What it is, that she can do?"  The lot number for bnt162b2 was not provided and will be requested during follow up.