terrible headache/"terrible headaches" noted to be on the top of her head; she has pain in her leg; her legs being heavy; it is difficult to walk; she has ringing in the ear which she had years ago but this is all the time and ringing very loud/she has more "high pitched" ringing; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient. Other Case identifier(s): US-PFIZER INC-202100929344 (Pfizer).  A 66 year-old female patient received bnt162b2 (BNT162B2), administration date 02Mar2021 (Lot number: EN6203) as dose 1, single for covid-19 immunisation. Relevant medical history included: "ringing in the ear" (ongoing), notes: ringing in her ears she has had for almost 12 years; "unable to walk" (ongoing), notes: She is unable to walk as she was before. The patient's concomitant medications were not reported.  The following information was reported: HEADACHE (non-serious) with onset Mar2021, outcome "not recovered", described as "terrible headache/"terrible headaches" noted to be on the top of her head"; PAIN IN EXTREMITY (non-serious) with onset Mar2021, outcome "not recovered", described as "she has pain in her leg"; LIMB DISCOMFORT (non-serious) with onset Mar2021, outcome "not recovered", described as "her legs being heavy"; GAIT DISTURBANCE (non-serious) with onset Mar2021, outcome "not recovered", described as "it is difficult to walk"; TINNITUS (non-serious) with onset Mar2021, outcome "not recovered", described as "she has ringing in the ear which she had years ago but this is all the time and ringing very loud/she has more "high pitched" ringing".  Additional information: There were the 3 symptoms she got after the Pfizer vaccine and now because it has been such a long time, it has been 6 months because its July, she went to talk to a pharmacist yesterday to ask them if she can have the other vaccine, the second dose of the vaccine and she told them about the symptoms and the pharmacist said they did not feel good to give her the second dose when she had so many symptoms after the first one. Her question really, she does not know in her situation, they told her she will have to take 2 more doses now so in her system will be 3 doses of the Pfizer vaccine. She has many health problems and the ringing in her ears she has had for almost 12 years but now it was very loud, and now the leg, she cannot even walk proper, and the headache bothers her still too. She has never had that big of headaches like now. She has the time but the most important thing right now to her was to protect herself and find out what she has to do. She does not want to feel worse after having this with the first vaccine, she suffered so much. She says if it would be okay, she just wants to talk with someone in the medical field so they could only give her some information. She just does not know what to do in this situation, she was afraid to take another vaccine. The pharmacist advised her that she would need to take the full series over again, getting 2 more shots. Despite this direction the caller notes from the pharmacy she also states that the pharmacist advised her to contact Pfizer to get guidance on how she should proceed with her dosing of the vaccinations at this time due to the delay between dose 1 and 2. Caller verified that her pharmacist could also call to get this same information from Pfizer. She states that "this is something new for them and me and the doctor. We do not know exactly how to approach everyone wants the best for everyone. Caller would like to know how protected she was after only having her 1st dose of the Pfizer COVID-19 Vaccine.  No follow-up attempts are possible. No further information is expected.