Experienced loss of appetite/ lost appetite; Getting depressed, it isn't right in head/ feeling depressed; Something isn't right mentally/ couldn't connect the thought to switch the action/ delayed response to do the actual action; When getting ready to make any type of motion or walk, equilibrium is off; Pressure in the back of head; Weakness/ weak; Fatigue; This is a spontaneous report from a contactable consumer. A 50-year-old female consumer (patient) received first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, solution for injection; Batch/Lot number, distribution number and expiry date was not reported) via an unspecified route of administration on 21Jan2021 (at the age of 50-year-old) in left arm as a single dose for COVID-19 immunization. The patient's medical history and concomitant medications were not reported. The patient did not received any other product and investigation assessment was not reported. As per the description, the caller stated, she received the first dose of the Pfizer covid vaccine last Thursday i.e. on 21Jan2021. Since she got the covid vaccine she experienced fatigue, weakness, felt like she was getting depressed, something wasn't right mentally, it wasn't right in her head, she felt like she can't. On Monday i.e. 25Jan2021 she was driving, 30mph and her brain was telling her to press the pedal. There was a delayed response to do the actual action, while driving down the road doing 30 in a 45, she wanted to speed up, but she couldn't connect the thought to switch the action, and it was the same thing when she got home, she wanted to pick up the remote, but it was putting the thought to the actions she couldn't do, she was just not herself. She had experienced loss of appetite, pressure in the back of her head, like when she was getting ready to make any type of motion or walk, her equilibrium was off. Her equilibrium being off depends on how much pressure was in the head, how much she felt it, to determine if her equilibrium is off, and was been varying. It is not the same all the time. She took off work on Tuesday i.e 26Jan2021 hoping she needed more rest. She went to the doctor on Wednesday i.e 27Jan2021, and the doctor thought maybe she had some tension from receiving the shot. It wasn't getting any better. She was due to get her next shot (second dose) and she asked if anyone else had these symptoms and if so how long did they last. She was trying to not take herself the second shot, she likes to travel and is trying to be brave for her children, and she works around soldiers everyday, the reason she got it is to protect her family, but she doesn't want to feel like this after the second shot. She had been 22 years in the army and had gotten many vaccine. she went into work on monday i.e. 01Feb2021, and haven't been back, covid test was negative. Hoping by monday i.e. 01Feb2021, she would be better. The patient underwent lab tests and procedures which included sars-cov-2 test as negative on an unknown date. The outcome of the events fatigue, asthenia and decreased appetite was not recovered/not resolved and for all other events it  was unknown.  Information on Lot/Batch number has been requested. Follow-up attempts are completed. No further information is expected.