Feels foggy/Feels in a fog; No energy; This pain is fibro pain in all of her trigger points, her chest, shoulders, knees, its accented the pain; Aches and pains; She thinks that the vaccine made her knees hurt more/This pain is fibro pain in all of her trigger points, her chest, shoulders, knees, its accented the pain; This pain is fibro pain in all of her trigger points, her chest, shoulders, knees, its accented the pain; Dehydrated; feels tired; This is a spontaneous report from a contactable consumer. A 69-year-old female patient received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, Formulation: Solution for injection, Batch/Lot number: EN6200), via unspecified route of administration, administered in left arm, on 18Feb2021 at 15:25 (age at vaccination: 69-year-old), as dose 2, single for COVID-19 immunization. Medical history included fibromyalgia, osteopenia and mild case of Asthma. Concomitant medications included ibandronate sodium (BONIVA) for osteopenia and mecobalamin (B12 RAPID SHOT) for fibromyalgia. Historical vaccine included bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE, Formulation: Solution for injection, Batch/Lot number: EL9264), via unspecified route of administration, administered in left arm, on 28Jan2021, as dose 1, single for covid-19 immunization and Prevnar-13 (Batch/lot number and expiration date was unknown), second shot, for immunization and experienced her arm was swollen and infected on her right arm. The caller was seeing a different doctor and she blames it on them because that's where she got her B12 shots she thought it was their needles or something. The caller didn't get her B12 shot that month after the first injection of the covid vaccine because the weather was bad. When the caller got her first shot, she made sure that between the shots she stayed home and that she took care of herself, she stayed low then after her second shot she really stayed low for 2 weeks. The caller has been discussing this with people who got the shot the same day to see if this was normal. On 18Feb2021 after the 2nd dose of bnt162b2 vaccination, the caller feels tired and like she was in a fog and has no energy. It took the caller 30 mins to get home after the second dose of the vaccine and she was so tired she slept 14 hours. On an unknown date, the patient felt dehydrated and drank 7 bottles of water and a lot of fluids and was mindful of it. On around 19Feb2021, she experienced pain (also reported as: The pain was a fibro pain in all of her trigger points, her chest, shoulders, knees, its accented the pain). The caller thought this was good because she was so relaxed, she could sleep for that long. The caller wanted to know how will she shake this, and will it disappear? How does she shake this fog she's in. The caller was a very busy person and she always contains her fibromyalgia and all of her triggers. The patient thought that the vaccine made her knees hurt more. The caller wanted to know how long this will last and if there is anything, she can do to help it along? There were no additional vaccines administered on same date of the Pfizer Suspect. Prior Vaccinations (within 4 weeks): none. The outcome of the events arthralgia, asthenia, dehydration and chest pain was unknown. The outcome of the events fatigue and feeling abnormal was not recovered.  No follow-up attempts are possible. No further information is expected.