had a little sore arm; dizzy; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 78-year-old female patient received BNT162b2 (BNT162B2), on 09Nov2021 as dose 3 (booster), single (Lot number: FD3527) at the age of 78 years for covid-19 immunisation. The patient's relevant medical history included: "Achilles tendon rupture" (unspecified if ongoing); "pain in her foot" (unspecified if ongoing); "Pain in her nerves" (unspecified if ongoing); "muscles" (unspecified if ongoing); "tendons" (unspecified if ongoing); "blood pressure" (unspecified if ongoing); "constipation" (unspecified if ongoing). Concomitant medication(s) included: LISINOPRIL taken for blood pressure measurement; HYDROCHLOROTHIAZIDE; NUCYNTA taken for constipation; TYLENOL; CODEINE; AMITRIPTYLINE; NEURONTIN; ORPHENADRINE. Past drug history included: Levaquin, reaction(s): "affected her nervous system", notes: her joints and muscles. Vaccination history included: BNT162b2 (1st vaccine, lot: EN5318, 72115121, Date: 29Jan2021), administration date: 29Jan2021, when the patient was 77-year-old, for COVID-19 Immunization; BNT162b2 (2nd vaccine: lot: EN6201, date: 07Feb2021), administration date: 07Feb2021, when the patient was 77-year-old, for COVID-19 Immunization, reaction(s): "She forget to take the several medicines"; BNT162b2 (2nd vaccine: lot: EN6201, date: 07Feb2021), administration date: 07Feb2021, when the patient was 78-year-old, for COVID-19 immunization, reaction(s): "Stomach problems", "Was having no pain at all"; BNT162b2 (2nd vaccine: lot: EN6201, date: 07Feb2021), administration date: 07Feb2021, when the patient was 78-year-old, for COVID-19 Immunization, reaction(s): "Gave a booster to her immune system". The following information was reported: PAIN IN EXTREMITY (non-serious), outcome "unknown", described as "had a little sore arm"; DIZZINESS (non-serious), outcome "unknown", described as "dizzy". Therapeutic measures were taken as a result of pain in extremity, dizziness.  Additional information: She stated that 11 years ago she had a reaction due to Levaquin that affected her nervous system, her joints and muscles. So she started to take Nucynta, Savella, Ephedrine and Amitriptyline in order to control her pain for almost 10 years. Last February she received her first COVID 19 Vaccine from Pfizer and 2 weeks later on Sunday she received her second shot and on Thursday or Friday of that week she realized she forgot to take all her medicines for her pain but the fun fact was that she was having no pain at all. She was wondering if there are reports of people about this unexpected adverse event. she has not been taking all that medicines ever since she received the second shot of the Pfizer-BioNTech Covid 19 Vaccine. She received her second booster dose this morning and someone told her that the vaccine might boosted her immune system. She had a little sore arm last time, but this time she has been fine. She had no trouble with the first two vaccines. She was having constipation because of the Nucynta. She knew that was possible with opioids. It was just occasional. It was not constant.  It was a little worse that time. But it resolved itself after that.  She thinks it was the Amitriptyline, but she was not sure. She lost 10 lbs in a year by not doing anything. One of the medicines she was taking made her hungry. So after she stopped those medications, she didn't eat as much, and lost 10 lbs in a year. She was taking 20mg lisinopril probably through this whole thing, but then just this past 6 months, she told her primary care she was getting dizzy, and now she is on 5mg. She was also taking hydrochlorothiazide, but she doesn't take that anymore. It could be related to the weight loss or stopping the other medications. She feels like she could almost stop the 5mg Lisinopril. She takes her blood pressure. Maybe the vaccines did boost her immune system. She feels like a totally different person without having to take all those medications. Her head was clear without the medicines. Her thinking process was so much better