yes it is Worse, yesterday it was with one leg and it got to the point where I couldn't use the legs and then last night; now my lower back is hurting as well and also my spine started to hurt; I woke up I could not stand I fell and I cant walk on  with either leg; I got really really bad where I was limping and it got to the point at night where I could not walk on it; it was with one leg and it got to the point where I couldn't use the legs; now my lower back is hurting as well and also my spine started to hurt; my hand strains in one last like hurt really bad like excruciating pain; I could not walk putting pressure on it I could not stand up; I could not walk putting pressure on it I could not stand up; Moving my leg hurt; felt tired; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 29 year-old female patient received bnt162b2 (BNT162B2), administered in arm right, administration date 30Mar2021 (Batch/Lot number: unknown) at the age of 29 years as dose number unknown, single for covid-19 immunisation. Relevant medical history included: "Cystic fibrosis" (unspecified if ongoing). The patient's concomitant medications were not reported. The following information was reported: PAIN (non-serious) with onset 01Apr2021, outcome "not recovered", described as "my hand strains in one last like hurt really bad like excruciating pain"; WEIGHT BEARING DIFFICULTY (non-serious), GAIT DISTURBANCE (non-serious) all with onset 01Apr2021, outcome "not recovered" and all described as "I could not walk putting pressure on it I could not stand up"; PAIN IN EXTREMITY (non-serious) with onset 01Apr2021, outcome "not recovered", described as "Moving my leg hurt"; FALL (non-serious) with onset 01Apr2021, outcome "not recovered", described as "I woke up I could not stand I fell and I cant walk on  with either leg"; GAIT DISTURBANCE (non-serious) with onset 01Apr2021, outcome "not recovered", described as "I got really really bad where I was limping and it got to the point at night where I could not walk on it"; MOBILITY DECREASED (non-serious) with onset 01Apr2021, outcome "not recovered", described as "it was with one leg and it got to the point where I couldn't use the legs"; SPINAL PAIN (non-serious) with onset 01Apr2021, outcome "not recovered", BACK PAIN (non-serious) with onset 02Apr2021, outcome "not recovered" and all described as "now my lower back is hurting as well and also my spine started to hurt"; CONDITION AGGRAVATED (non-serious) with onset 02Apr2021, outcome "unknown", described as "yes it is Worse, yesterday it was with one leg and it got to the point where I couldn't use the legs and then last night"; FATIGUE (non-serious) with onset 2021, outcome "unknown", described as "felt tired".  Additional Information: The patient had the Covid vaccine 2 days ago on Wednesday, she had pre-existing condition Cystic fibrosis (medical history)  that's why she was prioritize once she got the vaccine felt tired and then all of sudden her hand strains in one last like hurt really bad like excruciating pain that was yesterday and that day she woke up and could not stand she fell and could not walk on with either leg and somebody had  to carry her to the bathroom and she had to lay down even the person carrying her up and she did not like kidding with pain its excruciating like she did not know was that normal or didn't and she walk little bit of feeling and in part of its pain in his leg. Date of shot as 30Mar2021 and the patient stated that, she got on this Wednesday, two days ago. An anatomical location of vaccination was reported as upper right arm. The date of events were reported as following morning she was really really hard to walk with her left leg, yes yesterday morning it started of, some what hurting and  she thought it was a hand strains then towards the end of the day she got really really bad where she was limping and it got to the point at night where she could not walk on it, so she was just using to walk around today she want to get out of the bed and both leg were in excruciating pain she fell out of the bed and could not walk, putting  pressure on it she could not stand up some one had to help and to carry her into the bed and even just them moving her leg hurt. At the time reporting the patient still experiencing event and she fell out of bed could not walk, on either leg yesterday and it was worse. The patient couldn't use the legs and was slightly sore woke up this morning she fell out of the bed because she couldn't walk on the either leg, someone had to carry her up and even that hurts, She could not move her leg if a person moves it for her it hurts. The patient also stated that her lower back was hurting as well and also her spine started to hurt.  No follow-up attempts are possible; information about lot/batch number cannot be obtained. No further information is expected.