her left hand middle finger was numb and it was moving to her first fingers; really bad headache; muscle aches; fatigue; freezing cold, with chills; freezing cold, with chills; sweating; nasal congestion; couldn't breathe; lightheaded; slight cough; mild sore throat; was really bad and she didn't sleep/feels very drained; was really bad and she didn't sleep; hot flashes; sinus congestion; like a vasovagal response; received her third dose booster shot; received her third dose booster shot; still pretty sick; This is a spontaneous report from a contactable consumer (patient). A 41-year-old female patient received third dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, formulation: Solution for injection, Lot Number: FC3180, and Expiration date: Unknown), dose 3 via an unspecified route of administration, administered in left arm on 20Aug2021 11:30 (at the age of 41-year-old) as dose 3, single for COVID-19 immunisation. Medical history reported none. There were no concomitant medications. Previously the patient received first dose of BNT162B2 on 23Dec2020 (Lot Number: EL0142, Expiration Date: Unknown) and second dose on 11Jan2021 (Lot Number: EL0142, Expiration Date: Unknown) (both at the age of 41-year-old). The patient had zero side effects after her first shot, only a sore arm. After her second dose for the first 24-36 hours she had slight chills, muscle pain, and fatigue. The patient said being a physical therapist who had to work with COVID patients. She said she "received her third dose booster shot", clarified to being Pfizer COVID-19 vaccine. She said she got the third dose booster because her "son is immunocompromised" and she and her husband wanted to get the booster. The patient did not have any primary care provider. The reported that the third dose kicked her butt, it felt like a full on flu response was going on. She said she got it at 11:30AM on 20Aug2021(Friday), then at 09:30AM on the 21Aug2021 (Saturday) she had a really bad headache, muscle aches, and fatigue. Later in the same day she was freezing cold, with chills, and would periodically break out in a sweat (sweating). She said she would lay down through the day and rest, then that night she was congested (nasal congestion) and couldn't breathe through her nose, and when she would get up to do anything, she would feel lightheaded like a vasovagal response. She took Advil as treatment, around the clock. She clarified that she was not short of breath, that was not accurate, she "couldn't breathe" out of her nose, she was very congested in her nose. She had no chest pain. The patient took Advil 600mg probably three times a day. She said her congestion had gotten better, it started getting better Sunday morning when she woke up on the 22Aug2021. She said her muscle aches and fatigue were better, but she still did not go to work today because she did not think she can take care of patients. She said that "she is sweating right now actually", and she took a shower earlier because she was freezing cold and put on sweatpants and a sweatshirt and had to take the sweatshirt off. The patient said that she felt like she was missing some things that she wanted to tell call handler. She said on 21Aug2021, Saturday evening she started having a slight cough, not like she was very congested, just coughing, she felt the need to cough. She said she had a mild sore throat. She took more Ibuprofen when things were happening then. On Saturday night it "was really bad and she didn't sleep" the whole night and finally got up at 04:30AM and took over the counter Advil Cold and Sinus medication and used a nasal spray, an Afrin-type nasal spray then went to sleep around 05:00AM then at 08:00AM she woke up on 22Aug2021, Sunday and did not have sinus congestion anymore. She said on Sunday she felt better than she did all day Saturday. She said she started coughing more and having more episodes of periodic sweating and freezing cold and all that. She said last night she slept pretty good and stayed asleep all night, and she took another Advil Cold and Sinus last night and used another puff of nasal spray. The patient said on 23Aug2021, (today) she felt fatigued still and could not go to work, she "feels very drained". She said then something really weird happened (this) 23Aug2021, morning, that was why she called. She said this morning she was very relaxed, she was watching TV, and she felt freezing cold, about 09:30AM. She clarified she was eating and watching TV and all of a sudden, the middle finger on her right hand nail bed and the tip of her finger were completely numb. She said she tried to warm her hand up and then "her left hand middle finger was numb and it was moving to her first fingers". She said she took a hot shower which did relieve her fingers being numb. She went to go lay down for 30 minutes after the shower and then taking Acetaminophen because she had hot flashes and sweating again. The patient reported that she was still home and "still pretty sick". There was no investigation assessment. She said that she did not need attention, she just wanted to recommend staggering it, because she did not want people to hear about negative side effects for a bunch of people and not get it, she would like Pfizer to be ahead of it and not behind it, to better encourage people to get the vaccine. The outcome of the events "was really bad and she didn't sleep (insomnia)" and sinus congestion was reported as resolved on 22Aug2021. The outcome of the event "her left hand middle finger was numb and it was moving to her first fingers" was reported as resolved on 23Aug2021. The outcome of the events muscle aches and nasal congestion was resolving. The outcome of the events fatigue, freezing cold, with chills (feeling cold), sweating, slight cough, "was really bad and she didn't sleep/feels very drained", hot flashes, and "still pretty sick" was not resolved. The outcome of the events really bad headache, freezing cold, with chills (chills), "couldn't breathe", lightheaded, like a vasovagal response, and mild sore throat was unknown.  Follow-up attempts are completed. No further information is expected.