This patient support community is for discussions relating to undiagnosed symptoms, breathing difficulties, feeling cold, cough, diarrhea, dizziness, fainting, fever, indigestion, itching, nausea, numbness, pain (chronic), paralysis, rash, sweating, swelling, urination problems, and vomiting.
I think the first and foremost thing to do would be to get a vision test done, shortsightedness or myopia can cause fuzzy vision and floaters.
As far as not being able to breathe through the right nostril is concerned it could be because of a nasal polyp or infection in sinuses. You can try steam inhalation and see if it makes you feel better. If not then please schedule an appointment with your physician.