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Has this been constant the whole time? have you ever experienced this before? what is your age, gender? Do you have any headaches? fevers? pain in the neck or base of the skull when you flex your head forward? lightheadedness?
your visual symptoms sound much like a visual migraine. This needs some clarification as the names can be confusing. Think of it this way:
only the visual symptoms - no headache = ophthalmic migraine (also known as ocular migraine).
Headache by itself may be a migraine - usually has no visual symptoms
headache with an aura is called a classic migraine (headache with some peculiar visual warning / episode prior to headache)
Now you were wondering if this was possibly something else. Your lack of symptoms pretty much rules out seizures and meningitis. Although I cant put all your symptoms together. Couple of things concern me, typically visual migraines dont last as long as what you are experiencing and the bitemporal nature is a bit odd. Bitemporal anything makes me concerned for pituitary growths, most being benign. I would see an ophthalmologist to get your retinas examined just to be on the safe side and get a Visual Field Exam to ensure there is no definite loss of your vision, especially in the bitemporal fashion you described. The rest of your symptoms hopefully will improve as you get over your infection, I wish you well, Dr. Stevens