1. Discomfort in the eye is such a vague symptom that I cannot offer any comments. Generally if it is serious it will get worse over time and/or new symptoms appear. 2. The image size in each eye often varies especially without glasses. they is often due to differences in the glassex RX. Myopia makes things look smaller and hyperopia larger. 2. Floaters are a part of the way an eye ages, eventually the vitreous shifts (posterior vitreous detachment) this also is normal. In a very small number of people as the PVD occurs it can cause a retinal tear, hole, detachment or hemorrhage. This is NOT normal. A vitreous hemorrhage is NOT normal and the eye needs to be carefully examined using "dilated exam, indirect ophthalmoscopy and scleral depression" plus a follow up exam 4-6 weeks later needs to be done. A PVD is not painful nor are floaters. A constant headache is RARELY due to the eyes or glasses and other causes must be sought. You might consider seeing a retina specialist to see if you really had a vitreous hemorrhage.