Acute serious chest pain/ Chest pain; lost of weight; erosive gastritis; signs of a heart attack; Alkaline Phosphatase was still out of range (very high); This is a spontaneous report from a contactable consumer. A 72-years-old male patient received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE), dose 2 via an unspecified route of administration, administered in Arm Left at age of 72-years-old on 19Mar2021 16:58 (Lot Number: EP7534) as DOSE 2, SINGLE for covid-19 immunisation. Medical history included ongoing diabetic controlled with medications, high BP from 2007 and ongoing BP controlled by medications, elevated cholesterol from 2009 and ongoing cholesterol controlled by medications. There were no concomitant medications. The patient previously received first dose of bnt162b2 at age of 72-years-old on 25Feb2021 (Lot number: EN6202) for immunization and experienced terrible terrible stomach pain, bug in his colon, white blood cell 18000/19500, his blood pressure was out of the roof, broke out in sweats, could not eat anymore, he's lost 10 pounds, feeling warm, arm was sore, vomiting 5 times, nausea, dehydrated, gastritis, Alkaline Phosphatase showed it was elevated, his blood work were out of range and We were back in the ER on 05Mar2021 fora few hours for rash. The patient experienced chest pain on 01May2021, acute serious chest pain on 13May2021, erosive gastritis in May2021, alkaline phosphatase was still out of range (very high) on 13May2021, lost of weight on 01May2021, signs of a heart attack on an unspecified date. The patient was hospitalized for Chest pain, erosive gastritis and lost of weight for 3 days. The patient was hospitalized for Acute serious chest pain for several hours. Chest pain: Details: medication: Glipizide, protonix, erosive, endoscopy- gastritis; echocardiogram, stress test. Acute serious chest pain: Details: new medication: sucralfate; chest X-ray, ultrasound cat scan, etc. Clinical course reported as: We have been to the ER multiple times; May 1-3 and again 13May, and by early May, after having had every test in the book multiple times, he was diagnosed with gastritis and put on Protonix. The next time to the ER on 13May he was started on dicyclomine and sucralfate. His most recent blood work of June 16 shows that his Alkaline Phosphatase was still out of range (very high), although some of the other components have improved. He has lost a lot of weight. We were still trying to get to the bottom of this. He has follow-up appointments with his family doctor, with his heart doctor and his gastroenterologist who just ordered an MRI of his stomach. The patient underwent lab tests and procedures which included blood pressure measurement: 227/110 mmhg (This is ongoing problem), blood test: out of range on 13May2021 Alkaline phosphatase very high, many components out of range, blood test: out of range on 16Jun2021 Alkaline phosphatase very high, many components out of range , stress test: unknown results, chest x-ray: unknown results, CAT scan: unknown results, Ct Scan: unknown results, echocardiogram: unknown results, EKG: unknown results, endoscopy: gastritis on 03May2021, ultrasound scan: unknown results. Therapeutic measures were taken as a result of acute serious chest pain/ chest pain, erosive gastritis, alkaline phosphatase was still out of range (very high), lost of weight. Events lost of weight, erosive gastritis and Alkaline Phosphatase was still out of range (very high) resulted in Emergency Room Visit and Physician Office Visit. Events Acute serious chest pain/ Chest pain resulted in Emergency Room Visit. Outcome of signs of a heart attack was unknown, other events was not recovered. Events chest pain, acute serious chest pain and erosive gastritis were reported as serious due to hospitalization. Event lost of weight was reported as serious due to medically significant, hospitalization and disability.  Follow-up attempts are completed. No further information is expected.