Developed a rash under her breast and extending to her back; Heaviness in her shoulders and legs; Heaviness in her shoulders and legs; Couldn't walk; painful/pain went from her thighs down to her knees. Now, for the last 3 days, it is in the calves, ankles, and feet; Symptoms hit all at once, starting in her hips and thighs and started travelling down; Symptoms hit all at once, starting in her hips and thighs and started travelling down; This is a spontaneous report from a contactable consumer (patient). A 69-years-old female patient received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, solution for injection, Batch/Lot number was not reported) via an unspecified route of administration, administered in Arm Right on 30Apr2021 12:00 (at the 69-year-old) as DOSE 1, SINGLE for covid-19 immunisation. Medical history included, Breast surgery (Had breast surgery twice), High blood pressure, arthritis, Kidney problem (She thinks 3 years ago, her doctor told her to stop eating salt because her kidneys had a problem. She has changed her whole diet). Previously six years ago she got a pneumonia shot for immunization and had aches and pains like this but it went away for 3 days. Concomitant medication(s) included acetylsalicylic acid (BABY ASPIRIN) 2 pills per dose; amount of dose not clarified. On 04May2021, on day 4 the patient developed a rash under her breast and extending to her back. She also has a heaviness in her shoulders and legs starting four days after. On May2021, the symptoms hit all at once, starting in her hips and thighs and started travelling down. Its a heaviness, it feels like they are cement or a tight ankle bracelets. On May2021, Its only painful when she tries to walk, but otherwise not painful. She had been taking a lot of vitamins and drinking a lot of water. She was supposed to get her second dose today but because she is still having symptoms she rescheduled for next Thursday. She is due for the second vaccine and wanted to know if she has to get the second vaccine. From the first shot, she still has problems with her legs and shoulders. 4 days later on 04May2021 she couldn't walk. She thought maybe if she could keep stretching it would be ok to get up and walk with a cane. On May2021, 2 days later, it left. The sickness went from pain went from her thighs down to her knees. Now, for the last 3 days, it is in the calves, ankles, and feet. It keeps moving and it is so hard to walk. Where she got the shot in the right arm, it didn't bother her but the left arm did. She wondered what the heck was going on. She is supposed to take the next shot today. Her symptoms were so late coming, maybe she should wait four days later or next week? It is hard to get to the bathroom. She can't walk, it is horrible. She is an active person and doesn't like this. It is not a pain, it feels like somebody put a real tight ankle brace on and her feet feel like lead. It is a really unusual feeling.  Treatment included as the alcohol and the Neosporin for all the event. Then she got a crazy rash on the left side under her breast, all the way to her back. She put alcohol and Neosporin on it. Patient did not any AE(s) require a visit to Emergency Room, Physician Office. No prior vaccinations (within 4 weeks). The outcome of the event for rash under her breast and extending to her back was recovered on 2021, rest all event was unknown.  Information on Lot/Batch number was available. Additional information has been requested.