id like to know if anyone has found an explanation for these. ive had them frequently beforw, usually when I have had a high fever. also,like you it started around 3, when I had a form of scarlet fever. what really caught me was the "expanding contraxting sensation, for me, when things were large I was irrationally fearful (best description I can do) and when it shrank It was like I had almost calmed, but I knew it was just beneath the surface waiting to come back. I havent had one recently though, atleast a year, but I thought it was just me. hope someone has info on this.