Hello. I am not sure I can understand your problem. You have too many. As far as urinating and Covid vaccine is concerned there are no studies to prove it that urinating multiple times is a risk factor for covid or Covid vaccine. You can get the following test done to assess your kidneys.
For the rest of your problems (dusty eyes, sneezing, headache) I need more history from you.
Next Steps
Urine r/m and culture
Rft
Usg kub with pvr