Obviously you can't "make yourself" get an illness (nor would I think you'd want to), but I'm wondering if anyone else has had a similar experience to what I'm having right now.
So my current fear for the past 6 or so months is of visual symptoms and such. A little while ago, I found out what "Palinopsia" was, which is basically long-lasting afterimages and trails on every moving object. At first, I thought, "Hey, that's interesting." But of course, it didn't stop there. I kept thinking about it, and being the hypochondriac that I am, I kept checking to make sure my afterimages aren't long-lasting. They weren't. But y'know, I kept checking and thinking about it, and now about 2 or 3 weeks later, I somehow managed to make myself see afterimages more frequently. I was watching a movie earlier, and I noticed that if I'd look at a scene and then look away, I'd see a brief (less than half a second) vague positive after image of what I was looking at. A few days ago, I noticed when I was playing some games, I'd see brief positive afterimages (same as before) of things that are in high contrast (especially something white on a dark background, that's when it's the most noticeable). I don't know if that's considered normal, or if I'm just freaking out about it because it's been constantly on my mind for the past 2 or 3 weeks, but wow this blows. And now, of course, I'm worried that I have palinopsia. But hey, at least I don't have trails. Yet.
Anyhow, I was wondering if anyone else had similar experiences to this. Considering that I haven't noticed any afterimages or anything before I looked up palinopsia and found out what it was, I know that logically it's highly unlikely that I actually have this condition. But I'm just wondering; can thinking about a symptom constantly actually make you experience them? It seems that I have "trained" my brain to look for these afterimages, but I don't really know how to "untrain" it. I guess the best way would be to just stop thinking about it, but that's easier said than done, of course.