Hazy vision and believing there are gnats or flies when there are none?

Vitreous separation. Most likely this is a symptom of vitreous separation. It may be associated with flashes of light in the peripheral vision. Although usually not dangerous, a vitreous separation can occasionally lead to retinal tears and even less frequently to retinal detachment. If this happens, it is prudent to be examined by an eyemd, especially if you are at high risk, such as being highly nearsighted.