bronchitis; sinusitis; being sick for so long; stomach bug/flu; This is a spontaneous report from a contactable consumer (patient) reported for himself. A male patient of an unspecified age received second dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Formulation: Solution for injection, Batch/Lot number: unknown, Expiration date: unknown) via an unspecified route of administration, administered at an unspecified anatomical location on 26Mar2021 (age at vaccination was unknown) as 2nd dose, single dose for COVID-19 immunization. Medical history included bronchitis for 3 months. Concomitant medications were not reported. The patient previously took first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Formulation: Solution for injection, Batch/Lot number: unknown, Expiration date: unknown) via an unspecified route of administration, administered at an unspecified anatomical location on 03Mar2021 (age at vaccination was unknown) as 1st dose, single dose for COVID-19 immunization. The caller stated that he had his first dose of the Pfizer COVID 19 vaccine on 03Mar2021 and the second dose 26Mar2021. He stated, he didn't put it together until today that maybe having the vaccine and being sick for so long could be related. He has had bronchitis for 3 months. At first, he just thought it was sinuses' and his wife, who is an ER nurse, said that it wasn't and made him go to an urgent care on a Thursday. They diagnosed him with bronchitis and sinusitis and gave him Flonase, Phen DM cough syrup, and Augmentin. That didn't really help at all except maybe a little with the sinus part of it. Then 8 days later he went to see his PCP and she gave him a shot of Rocephin and a steroid shot. He was reluctant because he had a history of a reaction with Novocain and it made him break out and the shot had lidocaine in it but it was fine and he didn't have a reaction to it. His mom was also allergic to Novocain and lidocaine. The doctor told him to let her know if he didn't feel better in a week. So his wife messaged her and let her know that he still didn't feel better and she prescribed Doxycycline which was a pretty strong antibiotic and he has finished that prescription and it didn't really help either. He just started to feel better the other day and they went to take their daughter to her cardiologist appointment and went to see family after that and then that night which was last night he got a stomach bug/flu. He usually had no problem fighting these things off. Since his wife was a nurse sometimes she brought home little bugs and he never got them. He felt like his body was having a hard time fighting things off and he didn't know if its because of the vaccine or not. He usually had a strong immune system. He used to work in admissions and admit people who were having EGDs and lab work and things like that so he talked with a few nurses and doctors that he knew and they said they didn't know if it would be related or not. He had never been one to call out of work and he was a stay at home dad now but if he was still working he would have called out today after having that stomach bug last night. He asked whether there had been reports of a long lasting lowered immune system after getting the vaccine. He received the response stating that regarding that there was no information regarding his circumstances specifically. Relayed that the vaccine was meant to cause an immune response but that there was no information regarding prolonged lowered immunity. Referred to HCP to continue to be evaluated. He asked whether there had been reports of antibiotics not working after having the vaccine. He received the response stating that regarding antibiotic use with the vaccine. Relayed to caller that this is the only information they had in relation to antibiotics with the vaccine. Referred to HCP for further evaluation and treatment. The outcome of the events was unknown.  Follow up needed, further information has been requested.