trouble breathing; This is a spontaneous report from a contactable consumer. A 80-years-old female patient received first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Batch/lot number: EL3249), by injection once to upper right arm on 21Jan2021 at single dose for prevention. The patient medical history and concomitant medications were not reported. The patient experienced trouble breathing on 24Jan2021 with outcome of unknown. She got the vaccine shot last Thursday, later clarified as COVID vaccine, and she has read over the factual sheet given after the shot, she read it once quickly, will she be ok? She has difficulty breathing, one medication, she has that too, but not more often, with this she has been having it more often, she sleeps well during the night, it is just during the day. That was a severe reaction, two days ago or so, she can breathe sometime, but it's during the day, she read one dose effects say severe reaction, and it also says. she should have been given this paperwork before the vaccine, she didn't need it, she did not have an emergency, unless the second shot will be more helpful than one shot, after 3 weeks she gets another one. It says to call vaccine provider or healthcare professional if you have any effects that bother you or do not go away, how long do you wait until it doesn't go away? Why do they give the paperwork, why don't they give it at the doctor's office office before you set up an appointment to get vaccinated? Before so you can sit down and read the paperwork, she probably would not have gotten it, it says it is only only for emergency use for 16 and over, is this still a clinical trial, that information is not provided, and that burns her behind. She got the shot and 3 days later had the difficulty breathing, so she got it last Thursday, then started Sunday, Monday, into Tuesday, and it's just not. (caller did not complete sentence). Reporter email address declined. She hasn't told her doctor yet, provider's address and email address unknown. She thinks it started on Sunday, it wasn't yesterday, she thinks it was Sunday off and on, sometimes during day she can catch her breath, it may not be this or something, which is what she wants to find out, she is concerned with the idea this should not be sent out, she would not have gotten it. Has Pfizer received many calls about this, about the paperwork? It says it has not been approved, she would never have gotten it, it says only for emergencies, she doesn't have an emergency, this should have been given before the vaccination, it is probably still under clinical trial, but they are saying on TV everyone should be vaccinated, it is either up or down, yes or no, a see saw, yes they do something, then no, it's controversial, some part of paperwork says yes. Her breathing is not worse, this says it may go away in a few days, it says if it bothers you or does not go away, how long does she wait? It says severe reaction she doesn't understand, if it goes away, it doesn't bother her health, then goes away because of the vaccine inside, ok, once she got the vaccine, she had to stay in a room for 20 minutes or so, she had to stay in a room if she had a reaction. Her vaccine card says first dose, then says the hospital, she can't really read it, they write so quick. Says 11Feb2021 is her second dose She read in there, if you have an allergic reaction to other vaccines, she said no, this was her first reaction.