@lindentea - I know what you mean, I was 54 and going to the gym 4 or 5 times a week with my sons. I played competitive soccer for 20 years and kept my self fit my whole life. No smoking and very little alcohol. After my 3rd COVID vaccine (Pfizer) my breathing has been very labored doing simple tasks, walking up stairs at home etc. If I am in a supermarket, I need to take a break during the walk around to get produce. I have had heart and lung tests and they did not find any issues. Five years on and there is no improvement. When it happens I go grey and zone out. I have constant ringing in my ears and my blood pressure spikes giving me headaches. When I mentioned to the doctors that it was fine before the vaccines, they talk to me like I am a child and dismiss my claims.