Malaise; Muscle ache; feeling off; felt physically tired; gastric disturbances with a lot of gas; flu; body was aching all over; not been feeling quite energetic lately; she hasn't been sleeping well; gastric disturbances with a lot of gas; felt very flushed; overheated; elevated temperature to 98.1; Headache; Nausea; soreness at injection site/intermittent shooting pain down arm of injection site; This is a spontaneous report from a contactable consumer who reported for herself. A 71-year-old female patient received the first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE), lot number: EN6199, via an unspecified route of administration on 10Mar2021 12:30 (at the age of 71-years-old) at single dose for COVID-19 immunisation.  Medical history included hypothyroid of non-specified origin, feeling lightheaded, and blood pressure abnormal. Patient stated that she did recently go in to hospital because she was feeling light headed and because of her blood pressure. States they ran a blood work panel, checked urine, kidneys and a CT scan of the brain, and everything came back fine. States that this happened about 2 or 3 weeks before the Covid-19 vaccine injection. States she was seen in the ER and was not admitted to the hospital. Concomitant medications included lisinopril taken for blood pressure abnormal from an unspecified start date and ongoing, started taking it 6 or 7 years ago and states taking it twice a day seems to balance better, and also states she was taking small dose of lisinopril for blood pressure, right now is taking 7mg a day, she was taking 5mg but was trying to bring down blood pressure a bit, upped her dose to 7mg; and thyroid (ARMOUR THYROID) taken for hypothyroid of non-specified origin from an unspecified start date and ongoing. She was recently changed to Armour Thyroid 45mg once a day. She states that this is an ongoing thing and that she recently switched to Armour Thyroid from another thyroid medication. States she has been taking this medication for 6 months. She is getting ready to switch to different medication because she can't get Armour thyroid right now. She also states that the only medications she takes on a regular basis is an immune booster, elderberry tincture. Stated she took this on the day of the vaccine but not the day before. Patient previously took tetanus injection 5 or 6 years ago on an unspecified date. The patient experienced headache on 10Mar2021, malaise on an unspecified date, nausea on 10Mar2021, soreness at injection site/intermittent shooting pain down arm of injection site on 10Mar2021, elevated temperature to 98.1 on 23Mar2021, muscle ache on an unspecified date, feeling off on an unspecified date, felt physically tired on an unspecified date, gastric disturbances with a lot of gas on an unspecified date, flu on an unspecified date, felt very flushed on 23Mar2021, overheated on 23Mar2021, body was aching all over on an unspecified date, not been feeling quite energetic lately on an unspecified date, she hasn't been sleeping well on an unspecified date. Patient stated she was having symptoms and wanting to confirm if they were related. Confirmed that patient is referring to Covid-19 Vaccine. Patient had her 1st injection on 10Mar2021, and initially the main thing she experienced was soreness at the injection site and intermittent shooting pain down the arm of the injection site, which have subsided. Now, 2 weeks after the vaccine she has been having headaches. Stated she had a bit of a headache on 10Mar2021 right after the injection. Stated that it was not immediately but the next day and had subsided. Stated feelings of general malaise, feeling off and slight nausea. Stated she did feel some nausea the first night (10Mar2021) but it did not keep her awake. It was not ongoing. Patient trying to figure out whether these symptoms are normal and if other people are reporting this. Stated that in the information she has been reading, it doesn't indicate the symptoms lasting for this length of time. States she is not running a fever but last night (23Mar2021) had a situation where she felt very flushed, overheated and had a temp of 98.1. States she is normally 96.8, so this was slightly elevated from that respect. States she was having some kind of mild muscle aches, kind of like stiffness from a workout, but that was not the case. Not a severe workout but mild. States that when she got the flu, her body was aching all over.  It doesn't really feel that way now. Does not normally take FLU vaccine and is pretty much vaccine free. States that she did get a tetanus injection 5 or 6 years ago. She was feeling pretty okay and now this is coming on over the last week. States she lives with her mother and is her main caregiver. States her doctor is here in town and she intends to contact them. Mentions that her doctor is a family practice doctor but also believes she is an osteopath. She is now experiencing this 2weeks after vaccine. States she had a bit of headache right after the injection, the next day, not immediately, but it has subsided, and has been off and on for the last week. States that normally it seemed like it would leave. This morning woke up with a headache and normally a drink of coffee helps it go away. Today it is lingering, not completely debilitating but noticeable. States feelings of malaise ever since the injection.  Has not been feeling quite energetic lately. States that it seems like it comes and goes and that it started more in the afternoon, usually by noon or 1 o'clock. States she hasn't been sleeping well, which is her regular situation. Stated she was experiencing this a few days afterward and is still experiencing it. States that it is not keeping her from doing anything she wants to do except, sometimes doesn't feel so much like doing things. Last night felt physically tired with muscles aches. States they were not extreme but her body really wanted to stretch itself out. Felt like muscles were contracted but they were not. Stated this did not occur the same day as the shot but a few days later. She reported a temp of 98.1 last night, stated she felt feverish but has never anything over 98.1 which was the highest it has been. States she is feeling notably not herself.  This morning, the headache doesn't seem to be going away with one cup of coffee. States she would recognize temp of 97.8, which is probably why she feels a bit over heated and feverish. She has had gastric disturbances with a lot of gas. She was drinking a Pro-biotic drink with Kombucha in it, which did help the bowels but maybe she overdid it with that. States they did say it can effect you. States that today she is trying to fast to help balance her out. States she does not normally have a lot of gas. Attributes this more to the Kombucha and that it is also high in sugar. She reported nausea the first day of the vaccination, at night before going to bed. States that it did not keep her from sleeping. States she did not have it when she woke up the next morning. Since then, it has been more off and on.  The nausea has not kept her from eating and has not been sick to her stomach. States she is due for her 2nd vaccination next Wednesday, one week from now. She takes care of her mom who is 91.  Anytime she goes out, it affects her mom as well. Treatment: Stated that today, started taking a homeopathic for the flu. Provided name as Oscillococcinum (Lot number: 3E0142, expiry date: Mar2023). For headache, she has been drinking coffee and drinking herbal teas for support. The outcome of the events 'malaise and hasn't been sleeping well' was not recovered; outcome of the event 'soreness at injection site/intermittent shooting pain down arm of injection site' was recovered; and the outcome of other remaining events was unknown.