I have some weird effect; On my upper chest I felt pressure like very strong like I could not raise my arms up because of the pain; It was like if I have something on my chest like a big rock or something on my chest; On my upper chest I felt pressure like very strong like I could not raise my arms up because of the pain; On my upper chest I felt pressure like very strong like I could not raise my arms up because of the pain; after a while I feel like the pressure was lesser and I could breathe so it was like I can breathe better now; This is a spontaneous report from a contactable consumer (patient). A 50-years-old female patient received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE), dose 1 via an unspecified route of administration on 28Apr2021 12:00 (Batch/Lot Number: EW0175) as single dose for COVID-19 immunisation. Medical history included vitamin D deficiency. Concomitant medication(s) included vitamin d3 (VITAMIN D3) taken for vitamin d deficiency, start and stop date were not reported; vitamin c (VITAMIN C [ASCORBIC ACID]) taken for an unspecified indication, start and stop date were not reported. The patient think vitamin c bottle was generic, she just finished it couple of weeks ago, finish the last one and she threw the bottle out. She didnt have that anymore, she didnt have those numbers or the grams or milligrams. The patient previously received the mandatory vaccine when she was young. The patient had never done any vaccine in her adult life prior to Covid vaccine. The first shot was at 12 in the afternoon. The same date when she got the vaccine, she had weird effect. It was effect she could not write it down so she was calling regarding that. Had first dose of Covid vaccine she had some weird effect and she wanted to know what she could do if she take second dose or not and if she dont then what were her options. When she first take the Covid vaccine she felt like on her upper chest she felt pressure like very strong like she could not raise her arms up because of the pain, it wasnt a pain it was like if she have something on her chest like a big rock or something on her chest and that last for a couple of minute not a minute it last for a while and after a while she feel like the pressure was lesser and she could breathe so it was like she could breathe better now and she was supposed to take second dose and she didn't and after that from time to time she felt little pressure on her chest. She didnt know if it because of the vaccine or she didnt know. She had been trying to contact someone who could answer her concern and what she should do about it. She already went to allergist and he wanted to make some test on her regarding the effect of the dose. She was supposed to take it on the 20May2021 the second dose but she didnt because she couldnt get on contact with any doctor who could answer her question. CDC and FDA she left messages but no one called, so she have done the second dose (as reported). Consumer further stated that she didnt know this was related to but sometimes she felt like little bit pressure not intense as she felt it when she get the vaccine but like mild it was less, still sometimes she feel pressure on her chest. Consumer stated she was going to buy something here it is natural, she forgot the name. Couple of days before she went to the allergist and he was going to do some test on her, to see if it was she guess he was going to find out if she was allergic to something specific. Outcome of the event pressure on her chest was not recovered; could breathe better now was recovering and other events was unknown.