I get ocular migraines with aura and they are very common. It has nothing to do with your eye, it is actually pressure in your veins due to rapid constriction/dilation out of the norm due to hormones, stress effect on hormones, blood pressure, smoking, eating, stuff like that. I've even had 3 within a few hours before. It is nothing of concern. No pathological process is going on. Women tend to get them more around their cycle due to shift in prostaglandins. The first time it happened to me i thought my retina was detaching. I had my eyes checked a few times and all good, i just have strong vitreomacular traction but the doc says as long as i don't do contact sports then i don't need surgery. If i was a high risk to get hit in the head, then he would say get surgery, where they zap the muscles so they don't separate, but im not even worried about it. That has nothing to do with the migraines though, other than maybe causing an actual eye strain headache if the muscles get sore cause i strain on the computer if i don't wear my glasses (but i don't know that for sure that's just my theory). ALso, you could have a strong vasovagal response... so just when you go from sitting to standing take a few seconds to catch your balance. IF you sit for too long, make sure to get up every once in a while to stretch so your veins have time to adjust to pressure changes as the body goes from sitting to standing to laying down and stuff like that. None of that stuff is a disease... it's just normal fluctuations of body pressure. So you seem pretty normal to me.