2 days after the second dose she woke up with a swollen armpit up to her collarbone on the side of the vaccine; Still very tender; Her lymph nodes were really swollen up to her collar bone; Feeling uncomfortable; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 34 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 11Jul2021 17:00 (Lot number: EW0181) at the age of 34 years as dose 2, single for covid-19 immunisation. The patient had no relevant medical history. There were no concomitant medications. Vaccination history included: Bnt162b2 (Lot number: EW0191, Anatomical site: Left upper arm , Time of administration: 3:45-4pm, she got her 1st vaccine (dose 1) and everything was fine.), administration date: 20Jun2021, when the patient was 34 years old, for COVID-19 immunization, reaction(s): "Everything was fine".  The following information was reported: SWELLING (non-serious) with onset 13Jul2021, outcome "not recovered", described as "2 days after the second dose she woke up with a swollen armpit up to her collarbone on the side of the vaccine"; TENDERNESS (non-serious) with onset 13Jul2021, outcome "not recovered", described as "Still very tender"; LYMPHADENOPATHY (non-serious) with onset 13Jul2021, outcome "not recovered", described as "Her lymph nodes were really swollen up to her collar bone"; FEELING ABNORMAL (non-serious) with onset 13Jul2021, outcome "unknown", described as "Feeling uncomfortable".  Additional information: Report 1 of 2 on caller. She reported the event was not all the time, it comes and goes and swells and was still very tender. She was still experiencing this but not as bad. She wanted information on whether other people had experienced this and what to do. Her friend told her she may have to get it drained. Caller stated she was calling because she has side effects and when she got it middle of last year, the vaccine, they told her from where she got it to go to a website with the CDC and report her issue so she has been doing that. Stated that somebody else said to contact Pfizer and see if there was anything else she should be doing, that she may have to go to the doctor. Caller relays she got her 1st vaccine and everything was fine. States with the 2nd vaccine the first day everything was fine and the 2nd day her lymph nodes were really swollen up to her collar bone and she was told no mammograms or tests as it will show abnormal so she said ok. Caller stated it keeps happening, it will swell up or feel very tender from her armpit to her collar bone on the side that she got the vaccine. Stated that another person she knows said she might need to go get her lymph nodes drained. Caller was asking if anyone else has had that or what are the next steps. Caller relays she has reported to VSafe, a CDC.gov site. Stated that it did not let her put in her answers, it's all multiple choice. Caller declined stating she hasn't actually gone to the doctor. Caller stated she was taking notes up until she was over it all and said she was done. Caller relays her 2nd dose was on 11Jul2021 in her left arm and 2 days after that she woke up with a swollen armpit up to her collar bone on her left side. Caller provided that she would say it's getting better as it's not swollen all the time but at times it is very tender and she doesn't have dates and times for those. It got very tender and swollen and uncomfortable but it was not as swollen as it was after the vaccine. Caller relays that it looked like a whole other breast was up there after the vaccine. Caller stated that when it was tender or uncomfortable she tried to massage it or ice it but she did not know if that was the correct thing. Stated she was talking to someone that had a similar reaction with the vaccine and their doctor drained their lymph node so she didn't know if that is something she needed to do or if Pfizer had doctors she would go see. Caller relays she was not sure which vaccine they had and thinks that she or her doctor made a report about it already. No further details provided. Reporter seriousness for her lymph nodes were really swollen up to her collar bone and it keeps happening, it will swell up or feel very tender from her armpit to her collar bone on the side that she got the vaccine was Unspecified. No additional vaccines were administered on same date of the Pfizer Suspect. The patient did not visit emergency room and physician office. The patient did not have any vaccination prior Covid-19 vaccinations (within 4 weeks). Relevant tests were none.  No follow-up attempts are possible. No further information is expected.