Diabetes is different, it is not the same as it was before the shot; Insulin sensitivity has doubled; Memory is so bad; He clarified between the first and second shot he had an episode of low blood sugar.; Walking Pneumonia; This is a spontaneous report from a contactable consumer or other non hcp. A 56-year-old male patient received bnt162b2 (BNT162B2, Batch/Lot Number: EW0171; Expiration Date: Aug2021) via an unspecified route of administration, administered in Arm Left on 03May2021 at 16:30 as DOSE 1, SINGLE for covid-19 immunisation. Medical history included cardiac disorder from 22Jun2021 and ongoing Verbatim: Wears a heart monitor, type 1 diabetes mellitus from an unknown date and unknown if ongoing. The patient experienced he clarified between the first and second shot he had an episode of low blood sugar on 20Jul2021, he started to get the walking pneumonia on 06May2021. It was right after the shot. It lasted about a week. They did everything they could to keep it out of his lungs. If it had gone into his lungs he would have lost one of his lungs. He mentioned he has pneumonia so many times in the past, he was told if he had it again he would lose a lung. He confirmed this almost put him in the hospital. Diabetes was different, it was not the same as it was before the shot on an unspecified date, insulin sensitivity has doubled, memory was so bad. He was a Type I diabetic. He initially provided after getting the second dose it had been effecting his diabetes, it had jumped his insulin sensitivity. He had been to the hospital two times . He was curious and wanted to know what research has been done on autoimmune disease and the COVID shot. His disease was completely different than before the shot. He stated he did not want other diabetics to go through this. He stated it was like a different disease, he clarified as his insulin sensitivity doubled. He stated even long acting insulin was making him drop low, where it should have maintained a basal it did not. The insulin sensitivity went so high. He initially stated he had to chalk everything by 50% and that was unheard of. In regards to insulin sensitivity doubling he stated he did not have prefect control to begin with, but it was decent. Now he has no control. It's been like this ever since the shot. He had been fighting his blood sugar since the shot. Stated it was unknown what the issue is. He mentioned, he got out of the hospital yesterday. Yesterday, his blood sugar dropped dangerously low. It was so low and he was on a ladder when it happened. He stated his blood sugar dropped and he passed out. He went to the emergency room, 20Jul2021. He was in the emergency room and they gave him an ARNP, a nurse practitioner, and was doing everything to help, but he felt like he knew more about the disease than she did. Caller has now made an appointment with his doctor to go over his stuff to get things figured out. Caller stated he cannot work or do anything. He clarified and confirmed he was not administered to the hospital, but was just in the Emergency Room. They did not admit him because they got everything panned out and gave information about doctor to figure out where to start. His blood sugar dropped to 48. This occurred around 10:30 and he got the hospital around 11:00. His memory was so bad when attempted to clarify details regarding previous hospital visits. He stated he cannot remember that far back. He then clarified it was right in between the first and second shot. He clarified between the first and second shot he had an episode of low blood sugar. He went to the Emergency Room where they got the sugar back up and then it stabilized and was sent home. He confirmed he was not admitted to the hospital. Since then, it progressively got worse from that point forward .This occasion his blood sugar dropped to 22. His Insulin was adjusted to prevent it going too low. His insulin use has dropped dramatically. Stated, maybe, he does not know maybe we have found the cure for Type I diabetes because he was using less insulin in trying to get the same result. He mentioned, he will speak with his doctor to run a C-Peptide. He was wondering if he was making insulin again. Novolin N, it's a long acting insulin. He clarified this was the insulin he had cut by 50%. Novolin N - Has the box, Lot-LZFS270, List# 183402, Exp- Jun2023, Humalog - He clarified he had cut the use by 30%, it was short acting. However, he did not have packaging to provide a lot/exp/NDC. He mentioned now he was wearing a heart monitor. They think he had a valve issue going on. He started wearing a heart monitor on, 22Jun2021. The patient underwent lab tests and procedures which included blood glucose decreased: dropped to 22 on, blood glucose decreased: 48 on 20Jul2021. On unspecified date in May2021, of the event (atypical pneumonia) was resolved and remaining of events were unknown.   Follow-up attempts are completed. No further information is expected.