10 hours after the booster, she felt cold and achy; 10 hours after the booster, she felt cold and achy; sore arm; 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 70 year-old female patient received bnt162b2 (COMIRNATY), administered in arm left, administration date 07Oct2021 10:00 (Lot number: 301308A, Expiration Date: Nov2021) at the age of 70 years as dose 3 (booster), single for covid-19 immunisation. The patient had no relevant medical history. There were no concomitant medications. Vaccination history included: Bnt162b2 (Second dose: 18Mar2021, given about 10-10:30am, in the left arm, Lot: EN6208), administration date: 18Mar2021, when the patient was 70 years old, for Covid-19 Immunization, reaction(s): "chills", "aches", "low grade fever"; Bnt162b2 (First dose- 25Feb2021, given about 8:30am, in the left arm, Lot: EN6202), administration date: 25Feb2021, when the patient was 70 years old, for Covid-19 Immunization, reaction(s): "sore arm". The following information was reported: FEELING COLD (non-serious), PAIN (non-serious), outcome "unknown" and all described as "10 hours after the booster, she felt cold and achy"; VACCINATION SITE PAIN (non-serious) with onset 07Oct2021, outcome "recovered" (08Oct2021), described as "sore arm". Therapeutic measures were taken as a result of feeling cold, pain, vaccination site pain.  Additional information: Caller asked about the timing in between dose one and two of the vaccine. Said that said it should be 8 weeks in between. she lived in one of the poorest areas of the country, and there were a lot of elderly people there. Said that maybe they, unsure who she meant by that, were just trying to get rid of almost expired vaccines on those people. Later mentions that she should not have gotten Pfizer, but Moderna instead, because Pfizer was only half as strong and Moderna lasts longer than Pfizer; that Pfizer was not as good as Moderna. She was sent an email today saying that the expiration date is Nov2021. She was concerned that it loses its potency and was the reason there are breakthrough cases of Covid in vaccinated people. She stated that after her first dose, she just had a sore arm; after the second, she had chills, aches, and a low grade fever. She took Tylenol, went to bed, and was find. 10 hours after the booster, she felt cold and achy, but has otherwise not had any side effects and was concerned she did not get a good dose. She didn't have the same side effects, that she was told to expect. Patient history:, other product, investigation assessment was not reported. After the booster she had nothing but a sore arm. She was wondering, since the product expires in 3 weeks, maybe it was losing its potency and was not potent enough. Caller had questions regarding this as she thought it was odd that she didn't have the same side effects, that was what she was told to expect. Did she form antibodies since she didn't have the same side effects. She had no fever, aches, or headache. The sore arm lasted for 2 days after all the shots. She remarks her arm was better today after the booster shot. She thought this was just from the needle itself. Caller confirmed she had no headache after any dose. Chill-she was freezing and had to put on her thermal underwear and cover up. This started in the evening of the shot, about 10 hours after getting it. She took one 500mg Tylenol and woke up the next day and was fine. The same thing happened that next evening after shot. She took another Tylenol and when she woke up that was the end of it. The events lasted for a couple days, but not all day just in the evenings. No additional vaccines administered on same date of the Pfizer Suspect. No emergency Room or physician office visit required. No prior Vaccinations (within 4 weeks). No AE(s) following prior vaccinations. patient had no medical history (including any illness at time of vaccination). No relevant tests were done. There was no NDC.  No follow-up attempts are possible. No further information is expected.