was feeling something weird; it felt like she was going to have a heart attack, it was scary and like a grabbing in her chest where the heart is; hard time breathing; pain down her neck and around the ribs at the bottom of her breast and into the heart area and that's when it grabbed.; diagnosed with inflammation around her heart/ high carditis; This is a spontaneous report from a contactable consumer (patient). A 48-years-old female patient received BNT162B2 (PFIZER-BIONTECH COVID-19 MRNA VACCINE, Solution for injection, Lot Number: FC3180, expiry date not reported), via an unspecified route of administration, administered in right arm on 23Aug2021 10:10 (at the age of 48 years old) as dose 1, single for covid-19 immunization. Medical history included high blood pressure, for which she was diagnosed about 4-5 years ago; and she had surgery on her left wrist. There were no concomitant medications. The patient had no prior vaccinations (within 4 weeks). Patient received the 1st dose of the Comirnaty vaccine on 23Aug2021. Patient got diagnosed with inflammation around her heart after (2021). She was in urgent care and emergency on 29Aug2021. She stated that doctor mentioned taking Z-pak before taking the next dose. As per caller, her doctor informed her that she could be given a Z-pak before the second shot. However, she still has to consult with a cardiologist regarding this. She also mentioned that she just wanted to report herself because she was told that what she was experiencing was rare. She added that 2 weeks prior to getting the 1st shot (2021), she had a full physical exam which showed that nothing was wrong with her. She was scared about getting the shot but mentioned that she still wanted to get it. She also asked until when will her symptom last. She wanted to know when she can receive the 2nd shot of the Comirnaty vaccine due to her symptoms and because she still needed to consult with a cardiologist on what to take or do before she receives the 2nd shot. The patient mentioned that the patient took Covid 19 vaccine as her mom and dad are elderly and she works with children. She further mentioned that she had the Pfizer shot about 2 and a half weeks ago and had a reaction to it 5 days into it that led her to the urgent care and then the hospital and then to her doctor. She wanted to report because of the fact that it was inflammation around her heart and was documented that way. This was her 1st dose. Patient right now not to get the 2nd dose to see how she feels a little longer because of her heart. She had an ultrasound of her heart, an x ray and bloodwork and had a full physical (all on 29Aug2021) before getting the shot and it was documented (unknown results). She was scared of getting it, it hurt like she couldn't breath; it was really difficult. She was told by her doctor the pharmacist that gave the shot to delay her shot but maybe be put on medication before the shot, the doctor said that like a Z-Pack. She works for the school district and they all have to get the shot and she suffered very bad, she drove herself to the urgent care and they called the hospital and said to go right now. She was told they may want to put her on something before the next shot and was wanting to know if we have information on this. She was a certified home health aide before the pandemic. She was diagnosed with high carditis, she could not recall how to say it and has it written down somewhere; it was where there was inflammation around the heart. She further mentioned that she got her 1st dose on 23Aug2021 and she went to the urgent care, she was feeling something weird and it got stronger and uncomfortable and it was scary, on Sunday 29Aug2021. The feeling weird started 25Aug2021 and in Aug2021 progressed to a hard time breathing, it felt like she was going to have a heart attack, it was scary and like a grabbing in her chest where the heart is. She got the vaccine in her right side not the left as she had surgery on her left wrist and she did not mess with that side. She stated that everything happened on the left. She had pain down her neck and around the ribs at the bottom of her breast and into the heart area and that was when it grabbed (2021). It was still there but not as strong, it could get strong sometimes but she knew it was there but sometimes it could get really tight and other times she was doing her daily thing and nothing. It was a weird feeling like a boob hurt but behind that and they gave her a lidocaine patch and she thought what the hell for the pain was behind the boob. Moving around she could feel it and it was hard to describe, it really was. She also had 2 EKGs done, 1 in the urgent care and 1 in the hospital on Sunday (29Aug2021). She said everything was fine and that was when they were like they said it was a possibility it could be that word she could not say, the inflammation around the heart and they said she needed to make an appointment to see her doctor and she was very fortunate he had a cancellation on Wednesday. Patient received the vaccine at pharmacy. She was asking how long could she wait for the 2nd shot, that they want to do another test and she was trying to get an appointment with a cardiologist. She was stuck between a puzzle and doesn't know. She stated that providing information helps everybody, there can be word that this could happen; that whatever the word was she can't pronounce if it is they said male boys have it and she is female and 48 and that is a percentage. The events resulted to emergency room visit and doctor/physician visit. Therapeutic measures were taken as a result of the reported events. The outcome of the events was unknown.   Follow-up attempts are completed. No further information is expected.