2nd dose: couldn''t lift her arm over the level of her shoulder for a couple weeks; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 79 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date Mar2021 (Batch/Lot number: unknown) at the age of 78 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "Multiple sclerosis" (unspecified if ongoing), notes: Verbatim: MS; "Mitral valve prolapse" (unspecified if ongoing), notes: Verbatim: Mitral valve prolapse; "Dysautonomia" (unspecified if ongoing), notes: Verbatim: Dysautonomia; "Heat sensitive" (unspecified if ongoing); "Gluten free diet" (unspecified if ongoing), notes: gluten free for 44 years. Concomitant medication(s) included: NALTREXONE taken for multiple sclerosis (ongoing). Past drug history included: Zoloft, reaction(s): "gained 20lbs in 2 years". Vaccination history included: Bnt162b2 (Dose: 1st), administration date: 07Mar2021, when the patient was 78 years old, for COVID-19 immunisation, reaction(s): "lymph nodes and neck swelled up", "lymph nodes and neck swelled up", "neck stiffness", "fever", "rapid heart rate", "palpitations", "exacerbated MS symptoms"; Flu shot (Flu shot 35 years ago made her sick), reaction(s): "sick". The following information was reported: DECREASED ACTIVITY (non-serious) with onset 2021, outcome "unknown", described as "2nd dose: couldn''t lift her arm over the level of her shoulder for a couple weeks".  Additional Information: The reporter stated that that she took vaccine because everyone said to get the vaccine. The patient had a severe reaction after the first dose, but no reaction after the 2nd dose. Clarified that after the 2nd shot she couldn't lift her arm over the level of her shoulder for a couple weeks, but she doesn't know what that was all about. The weight was reported as 145-150lbs. The reporter stated that when the doctor gave her Zoloft years ago, she gained 20lbs in 2 years, so she got off the medication. She is one of the 10-20% that always has the exact opposite reaction to a drug. No Lot/NDC/Expiry to provide, that was almost 20 years ago. The reporter is trained as a dietician so she uses vitamins, minerals, enzymes, and supplements to take care of herself. She doesn't like to take prescription medications. The patient received her first dose of vaccine on 07Mar2021 and second dose 3 weeks later on advice of the hospital due to her severe reaction. After her 1st dose, her lymph nodes and neck swelled up. Reporter stated that she was afraid that she was having anaphylactic shock, but it didn't get that far. Her neck got so stiff that for a day or two after the shot she couldn't turn her head. She still has some stiffness, and her lymph nodes are still a little swollen. She ran a fever, and because of her preexisting consisting conditions of mitral valve prolapse and MS, she is heat sensitive. Her whole body is so sensitive that she cannot live in a retirement home because they keep it so hot in there; she likes it cold. She treated the fever aggressively for 2 days, with vitamin C, lysine, and took 2 Aspirin daily for a couple of days; she also drank lots of water, rested, and stayed cool. Running a fever and getting over heated gave the patient a rapid heart rate and palpitations. She had exacerbated MS symptoms. She was not provided with the Covid card. There are no history of previous immunisation with Pfizer vaccine considered as suspect. No additional vaccines were administered on same date. None of the adverse events required a visit to emergency room physician office. The patient was not hospitalized. There were no prior vaccination (within 4 weeks). There are no relevant family medical history. No relevant tests were done. Reporter has a very abnormal body with dysautonomia, so she has reactions to a lot of medications. States she was born with the dysautonomia, but it took them many years to figure out that she had it.    No follow-up attempts are possible; information about lot/batch number cannot be obtained. No further information is expected.