naa, i wouldn't worry about it too much. I sometimes feel light headed when I get up from too much screens, so do a couple of my friends... but idk, blacking out... I might worry about it a little bit
Sounds like a seizure to me; I don't think your arms would move involuntarily if you had just blacked out. You seriously need to see a physician.
Vision in males can be impaired by migraine headaches. I rarely get migraines, but when I do I lose my peripheral vision and I begin feeling dizzy and nauseous. Sleep does the trick for me, about 3-4 hours of it. It's important to figure out what triggers your migraine headache. Mine is usually caused by a lot of stress, but there can be many different reasons for having them.
I've taken migraine meds before as well, and lots of people have similar side effects. Don't take it. Go to your doctor, he will more than likely tell you to stop taking it. Generally most migraine medications have the same ingredients, so you probably won't find any different results between varying meds.
For all the people telling me to go to the doctor... I've already been. I went like 9 hours after the post, I think. It was just that, it was like 9 PM when this happened, and I didn't particularly want to go to the hospital for it, so I just waited until the next day and went to the clinic. I was kinda freaking out about it so I went on here and asked about it... And got me nowhere, really.