Thought he was going to die; Had labored breathing and stuff; getting spells of feeling like he is going to pass out.; Heart rate jumping up and down; light head and dizzy; experienced something like menopause, feeling heat  from chest up to head; his heart rate is usually in the 90s and sometimes it drops into the 30 and seems to be all over the place; red hot; Myocarditis type symptoms; This is a spontaneous report from a contactable female consumer. A 70-Year-old male patient received second dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Formulation: Solution for Injection, batch/lot number: ER8734) via unspecified route of administration, in the left arm, on 29Mar2021 (at the age of 69 years), as a single dose for COVID-19 Immunisation. Medical history included heart disease. The patient family history included heart disease. Concomitant medications were not reported. Historical vaccine included first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Formulation: Solution for Injection, batch/lot number: EN6206), via an unspecified route of administration, in the left arm, on 08Mar2021, as a single dose for COVID-19 immunisation. There were no prior vaccinations within 4 weeks. On an unknown date in Apr2021, about 2.5 weeks after he started having myocarditis type symptoms when he noticed it he was doing cardio and it was mild. He noticed it doing when he had laboured breathing and stuff which progressed to getting spells of feeling like he was going to pass out, his heart rate jumping up and down but his oxygen and blood pressure were fine. The patient stated his symptoms kind of changed and he was lighted head and dizzy when standing and now when sitting in the chair and it does it. He stated that he felt like it he had adrenaline and after talking to women and how they explain menopause that is the best way he can explain it, just like he is red hot and he stated it was really hard to explain, it was almost like if he experienced something like menopause where there is heat up to his chest and head. Caller stated he thought he was going to die, he thinks he was going to pass out, Caller stated he takes his blood pressure measurement 3-4 times a day and his heart rate is usually in the 90s and sometimes it drops into the 30s. It seems to be all over the place, but his blood pressure was the best it was ever been. The caller stated that the symptoms worsened from the original onset and now it was hard to say he will go a few hours without symptoms and then hits him or he will start out the day with symptoms and they go away. It was reported that the physicians were trying to currently treat the myocarditis and the doctors aren't quite sure what was going on. On an unknown date, the patient was hospitalized. He stated the doctors went in and had go in his veins and they checked his stents and couldn't find anything wrong. Caller stated he was on a monitor right now. Caller stated that he wished he had not received the vaccine now as he was fine before. The patient underwent lab test and procedure which included Blood pressure with a result of unknown. The outcome of the events was reported as unknown.  Information on Lot/Batch number was available. Additional information has been requested