I had 4 vaccinations over several months when I contracted asymptomatic Covid-19. About 8-9 days after testing positive, I suddenly collapsed, having great difficulty breathing. I was walking in my apartment, on ambulatory Oxygen, 4 litres, at the time, with no problems. I was rushed to hospital & was put on full time Oxygen 4 litres with full mask, instead of a canola. After about 7 days I was discharged but was re-admitted with pulmonary embolisms a week later. I was again discharged 5 days later. I have had no further problems. That was all back in May. I was very tired fo many monhs, falling asleep any time of the day. This has tapered off. I received my 5th. Booster vaccination last week.