pneumothorax, her right lung collapsed; cyst that was ready to burst on her lung; swelling in her right arm under the arm and in her chest area and breast; swelling in her right arm under the arm and in her chest area and breast; a heart murmur; a high resting heart rate; Back pain; lymph node swelling under her right arm pit into her chest; swelling in her lymph nodes and in her chest that were painful; swelling in her right arm under the arm and in her chest area and breast; This is a spontaneous report from a contactable consumer (patient's mother). A 21-year-old female patient received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE) on 09Apr2021 (lot number EW0153), at the age of 21 years, as the first single dose, for COVID-19 immunisation. Medical history was not reported. Concomitant medication included an unspecfied low estrogen birth control (she just took a birth control pill every day, probably on it since she was 16 or 17 years old). On 12Apr2021 the patient experienced back pain. On an unspecified date in 2021 the patient experienced lymph node swelling under her right arm pit into her chest. She had swelling in her lymph nodes and in her chest that were painful and she could touch them. On 16Apr2021 the patient experienced pneumothorax (on that day she went to the urgent care and they told her that her lung was about to collapse). The reporter finally got her daughter to come home from school and she took her to the emergency room on 17Apr2021. When the lung had collapsed, she felt worse and then she was in the hospital for an entire week. This event required hospitalization from 17Apr2021 to 29Apr2021. On 23Apr2021 she had a tube in her chest that was drawing the air out and they did something where they inflated her lung to see if it would stay and it wouldn't stay so they had to do surgery on 26Apr2021. When they went to do surgery they saw that on the outer part of her lung where the hole was that it wouldn't heal and they saw that it was like a cobble stone texture on the outside of the lung. The patient was in the hospital until 29Apr2021 and she was in the ICU the entire time. She went for check-ups and everything seemed to be good and her lung had healed. The caller was trying to connect dots between her family members and she had asked her daughter how she felt right after the COVID vaccine and her daughter said that she felt like "ehhh" and then on 12Apr2021 she had the back pain, then on 13Apr2021 she had air bubbles in her chest and on 15Apr2021 she was trying to walk to bars and she was out of breath. On 16Apr2021 the urgent care said they saw a cyst that was ready to burst on her lung and she was on bed rest and was given steroids. The caller thought that the swelling and the lymph nodes and having the cobble stone texture were all from irritation and then it had made a blister that popped creating the hole. On 29Jun2021 the patient experienced heart murmur and a high resting heart rate. Around 29Jun2021, the patient was feeling like her heart was moving in her chest and that it was out of synch and not right and that it was racing high and so the reporter called their family doctor who saw the patient the next day. They did an EKG that was irregular and now she had a heart murmur. She wasn't born with that and she had never had that and she didn't leave the hospital with that. She was fine until now with her having the murmur and the high resting heart rate, around 85. The caller didn't know the exact EKG irregularities because it said "normal" but they gave a copy to her and said to bring it to the cardiologist because it was not normal. The reporter didn't know the details and won't until the follow-up appointment on 16Jul2021 which was when they would have a better idea about what they were going to call this. She had the swelling in her right arm under the arm and in her chest area and breast, she was thin breasted, this was on the right side and then her right lung collapsed. The caller says that this was not a coincidence. There was no way that she would have three family members injured if it wasn't for the COVID vaccine. Her daughter should be taking an allergy medication but she won't take it. The patient did not receive the 2nd dose (when she had gotten out of the hospital after her pneumothorax that was when she was supposed to get her 2nd dose but they didn't go get it because they couldn't risk that). Back pain resolved on an unspecified date in 2021. The other events outcome was unknown.  Follow-up attempts are completed. No further information is expected.; Sender's Comments: Linked Report(s) : PFIZER INC-2021899289 same reporter/product/patient, different dose/event