I also experience similar visuals as you described (among others). My diagnosis is pretty close to yours, Rainbowzz, and I have chalked these visual oddities up to mild hallucinations brought on either by stressful situations, emotional duress, or even some medications. I would think they would be nothing to worry about unless they turn into a full-blown, all-out losing touch with reality sort of psychosis. Just my humble opinion anyhow.