she wakes herself up with anxiety; Heart racing; felt like she was clunked over the head; she was tired and sleepy; she was tired and sleepy; right thigh area in the muscle feels throbbing and pain; Fluttering Heart Beat; This is a spontaneous report from a contactable consumer (patient). This consumer reported similar events for two patients. This is the first of two reports.   A 56-year-old female patient received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE), first dose via an unspecified route of administration, administered in the right arm on 18Mar2021 at 08:15 (batch/lot number: ER2613) as a single dose for COVID-19 immunisation (also reported as "preventing COVID-19 virus"). Medical history included ongoing rheumatoid arthritis diagnosed 15 years ago, type 2 diabetes from Jun2019 and ongoing, and ongoing high blood pressure diagnosed about 25 years ago. Concomitant medications included adalimumab (HUMIRA) taken for rheumatoid arthritis from 2020 (started it a year ago) and ongoing; insulin detemir (LEVEMIR) taken for type 2 diabetes from 2019 and ongoing; insulin aspart (NOVOLOG) taken for type 2 diabetes from 2019 and ongoing. The patient previously took tofacitinib citrate (XELJANZ) prior to adalimumab. The patient stated that she has a question. She received her first dose today at the  in (City name). Stated they gave out a fact sheet upon leaving after vaccine. She stated the sheet stated that she should mention if she was immunocompromised or on medication that compromises the immune system. Asked should she be expecting something different. Stated no one asked her or told her before she got the vaccine. On 18Mar2021, she stated that she felt a fluttering heart beat that lasted for a half hour. She stated that she got the vaccine at 08:15, and about a half hour after (08:45) that she had a racing heart. She stated that she felt like she was clunked over the head, she was tired and sleepy but that has passed. She stated that her brother mentioned he had this too after his vaccine but resolved. Stated her right thigh area in the muscle feels throbbing and pain, nothing excruciating. Stated it was nothing to notice, her brother said he felt the same thing after his vaccination 2 days ago. For the event fluttering heart beat, stated that she had to sit down because she didn't know what was happening but it went away. For the event right thigh area in muscle throbbing and pain, stated it could be muscle of thigh, pain throbbing, not injection site. For the event tired and sleepy, stated that when she got home she first wanted to lay down and take a nap but thought she needed to stay awake. Stated sometimes she wakes herself up with anxiety or maybe it was side effects but she felt like she was starting to come around. She stated that she only has 10 minutes before she needed to walk out the door for an appointment. She still wanted to speak with Medical Information so she wanted to be transferred since she doesn't have much time before she needs to go. The outcome was recovered on 18Mar2021 for the events "fluttering heart beat" and "heart racing", and recovering for the rest of the events.; Sender's Comments: Linked Report(s) : PFIZER INC-2021307886 same reporter/drug/events, different patient