got a mild generalized headache; This is a spontaneous report from a contactable nurse (patient). A 59-year-old female patient received bnt162b2 (lot number: EK5730, expiration date: Mar2021), via an unspecified route of administration on the right deltoid on 17Dec2020 at 11:00 at a single dose for COVID-19 immunization. Medical history included ongoing migraine headache - stated she was diagnosed with migraines at 12 or 13 years old. There were no concomitant medications. The patient previously received influenza vaccine in Sep2020 for immunization. The patient got a mild generalized headache on 18Dec2020 and still has a headache after all these days. The patient received the COVID-19 Vaccine at the hospital where she works on 17Dec2020 at 11:00AM. She said she went to Pfizer's website for the COVID-19 Vaccine, and the Pfizer website said a headache that develops after receiving the COVID-19 vaccine lasts a few days. She said no matter what medication she is using for her headache, the medication is not working, and she still has the headache. She stated she went to her employer's employee health department, and the employee health department had no information to give her about the COVID-19 Vaccine side effects and what to do about the side effects. Reported the COVID-19 Vaccine was offered as an elective vaccine at the hospital where she works, saying the hospital offered the COVID-19 Vaccine to all its employees. As for treatment, she has taken only over-the counter products to treat her headache. She said she has been taking Tylenol 500 mg caplets, UPC Number: Unknown, Lot Number: PFA044, and Expiration Date: Mar2023. She said she has been taking 2 caplets of Tylenol 500 mg almost daily to see if she can get the edge off of her headache. She said she keeps trying the Tylenol hoping the Tylenol will one day help her headache. She clarified that on most days she is taking 2 Tylenol 500mg caplets once a day, but there have been a couple days where she took 2 Tylenol 500mg caplets twice during the day. Reported she also tried (pharmacy name) brand Migraine Relief Caplets. Reported the headaches she is experiencing now are not like the headaches she has had prior to getting the COVID-19 Vaccine. She said she goes to a neurologist for her migraine headaches, clarifying the headaches she is having now are just a generalized, dull headache. She said she can function at work with the headaches she is having now. She said the headaches are just annoying and headaches don't go away. She said the headaches are not debilitating like her migraine headaches. She said with a migraine headache, she would have to call out at work, but with the headaches she is having now, she can still function. She said the headaches she is experiencing now are not like the migraine headaches she has had prior to getting the COVID-19 Vaccine. She said she goes to a neurologist for her migraine headaches. She said the headaches she is having now are just a generalized, dull headache, and she can function at work. She said the headaches are just annoying, and don't go away. She said the headaches are not debilitating like her migraine headaches. She said with a migraine headache, she would have to call out at work, but with the headaches she is having now, she can still function. The event had not resolved.