Thank you for your question, and I am sorry to hear about your illness. In order to provide an accurate recommendation, I would need more information. I would need to review your entire medical history and also perform a thorough physical exam. I would also need to review any prior testing you have had for these issues. You will likely need additional testing to work up your symptoms. Only after collecting this information would it be possible to provide a potential diagnosis. I strongly encourage you to discuss these issues with a primary care doctor
Knee swelling can be caused by various issues. Osteoarthritis
can lead to the development of an effusion in the joint due to general inflammation. The same can occur in rheumatoid arthritis or other autoimmune diseases. A bacterial infection can also cause knee swelling. You will need to discuss this issue with a primary care doctor.
Eye floaters can be a benign condition or can represent retinal damage. You should initially discuss this problem with a primary care doctor.
It is unclear from your question if you are suffering from prostate cancer
, prostate enlargement, or a prostate infection. I encourage you to discuss these complaints with a primary care doctor.