I have been reading some studies done on the relationship between the flu vaccine and polymyalgia. I do believe I got polymyalgia from the flu vaccine because I have had so many. This is also why I think it affects older people because they have had more than most. I have had 3o flu vaccines and will not have anymore. I am therefore quite concerned about what this new coronavirus vaccine will do to my immune system. I am 59 now and have had polymyalgia now for over 5 years and am still symptomatic and still on prednisone though only 5 mgs.