Occupational Health Nurse Reports Persistent Illness in Vaccinated Staff

I work for a large company that is not pro mandate. There are nearly 900 employees. I do health checks and covid testing. I am seeing vaccinated who are either constantly coming in with flu like symptoms or complaining of being sick with flu like symptoms for over a month. Some of them are very fit and healthy and they tell me that they are never sick. I am seeing youth staff in their 20s coming in complaining of sore throats and tiredness. A couple of the managers and their families ( all vaccinated) are saying that they are sick for long periods and can’t seem to regain their health. I have never seen so many ‘ normally healthy ‘ now complaining of feeling unwell. I saw a lady yesterday who cannot shake the upper respiratory tract infection she has had for over a month.
She has run out of sick leave and still unwell.

I am seeing a lot with high blood pressure. Some as high as 180/100.
Some staff state they have never had hypertension before.
Every week some business units have people off sick. When staff want to the see their GP they have to wait up to a month for an appointment and when they do go they have to wait up to 5 hours for a booked appointment.