Pain she is having in her Achilles that started getting swollen and hard 2 days ago; Pain she is having in her Achilles that started getting swollen and hard 2 days ago; Saturday the pain in the caller's Achilles got worse; Flip flips caused tendonitis or something or fasciitis; Flip flips caused tendonitis or something or fasciitis; Limping; This is a spontaneous report received from a contactable consumer (patient). A 73-years-old female patient received bnt162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE; Solution for injection, Batch/Lot Number: EW0217; Expiration Date: 30Sep2021), dose 1 via an unspecified route of administration, administered in Arm Right on 28Jul2021 at 1:30 (at the age of 73-years-old) as a DOSE 1, 0.3 ML SINGLE for covid-19 immunisation. The patient Medical history included osteoporosis from an unknown date and unknown if ongoing and family Medical History Relevant to the event was none. Concomitant medications included ibuprofen (ADVIL) 2 every morning  taken for osteoarthritis, start and stop date were not reported and colecalciferol (VITAMIN D) 1,000 every other day taken for an unspecified indication, start and stop date were not reported. History of all previous immunization with the Pfizer vaccine considered as suspect were none. Additional Vaccines Administered on Same Date of the Pfizer Suspect were none. Prior Vaccinations (within 4 weeks) and event following prior vaccinations were none. On Aug2021, the patient experienced pain she was having in her achilles that started getting swollen and hard 2 days ago, on an unspecified date in 2021 flip flips caused tendonitis or something or fasciitis, limping and saturday the pain in the reporter's achilles got worse on Aug2021. Reporter was asking with a question about the Covid vaccine. Reporter reported that she received her first vaccine dose on 28Jul, Lot number ew0217 and was due for her second dose on Wednesday but she has been needing to take Advil for pain she was having in her Achilles that started getting swollen and hard 2 days ago. Now it's completely swollen and hard. Reporter reported that she has her family there and has been doing work in the garage, lifting things and running around in flip flops. Reporter states "it looks like I had a trauma, but there was no trauma I have been running around in flip flops and began having weird pains and limping the whole week now I'm worried it might rupture". Reporter reported that yesterday she took 4 Advil, today she took 2, and while she normally takes 2 Advil ad day she now asked if that would interfere with the vaccine she was planning to get on Wednesday? Reporter reported that she was planning on going to the doctor because she doesn't usually have this and its weird and unusual, she doesn't normally have this much swelling. Reporter did also report having a history of a bone spur in her heel, but she doesn't remember which heel. Reporter asked, "When am I fully protected after getting the vaccine?" weird pain in her Achilles was reported as worsened. It was reported that, other Conditions was in her hips. Diagnosed many years ago, when she was 50 years old (unspecified). It was reported that, the reporter received her first dose on 28Jul2021, lot EW0217. The reporter is due for her second dose this coming Wednesday but is worried. The reporter had family around and was running around in flip flops. The reporter started getting a weird pain in her Achilles. 2 days ago, it started looking swollen and hard and looks like there is trauma but has no trauma. The reporter took 4 Advil yesterday and 2 today. Normally the reporter takes 2 Advil a day. Can the reporter take that? Will it interfere with vaccine? The withheld agent provided the reporter with this information prior to transfer. The reporter also has a history of bone spurs in one of her heels. The reporter saw the Achilles 2 days ago or yesterday and immediately took 4 Advil, 2 around 3:00 am and then 2 more at 9:00. The reporter got really scared because it was sticking out and hard and she thought if she couldn't get the swelling down it may rupture. The reporter applied a bandage and relaxed. The reporter walked around but had a bandage on yesterday and walked around in sneakers, her flip flops may have caused this. The reporter wears flip flops every summer and has never had this. The reporter had been limping for a week or a week and half because she felt something hurt. The reporter's kids thought the flip flips caused tendonitis or something or fasciitis. The reporter was worried it is going to get worse and wanted to get the second dose. The reporter feels it is getting better with rest and the bandage. It was reported that, a week ago the reporter couldn't walk naturally and thought it was plantar fasciitis. The reporter was running around a lot and didn't stop using her flip flops. The reporter thinks she has allergies to heat and doesn't have air conditioning and it has been almost 100 degrees where she lives. Saturday the pain in the reporter's Achilles got worse, at 6:00 am she noticed the swelling on her Achilles. The limping has been going on for about a week, maybe since last Monday. The reporter was taking a book off a shelf and lifting a box and thought this could have caused this issue. The swelling has gone down, but the reporter's Achilles is wider and still swollen. The pain has gone down but the reporter has adjusted by walking on the other leg, so it doesn't get worse. If this gets work the reporter was afraid, she will have to go to the doctor and delay her second dose and she doesn't want that. The reporter slipped in the bathroom 2 weeks ago and hurt her back because she took her bathmats out. Could this have caused this? The reporter feels like she may have tendonitis in her back. The reporter stopped taking Oscal because she didn't want kidney stones so now, she just drinks milk. The reporter takes 1,000 of vitamin D every other day and sits in the sun. Reporter asked whether she could continue taking Advil? Event did not require a visit to, Emergency Room or Physician Office. Family Medical History Relevant to the evet were none. Relevant Tests were none. Reporter seriousness for the events were unspecified. Outcome of the pain she was having in her achilles that started getting swollen and hard 2 days ago and saturday the pain in the reporter's achilles got worse were not recovered, flip flips caused tendonitis or something or fasciitis was unknown whereas, limping was recovered in 2021.  Follow-Up (27Aug2021): Follow-up attempts are completed. No further information is expected.