Eyes feel heavy and tired...

Hey, maybe someone can help me out. Please, if you can, reply. Lately my eyes have been feeling really tired and heavy- like they almost hurt. Sometimes they get blurry, too. I've also got a good amount of floaters in my vision, but I've usually always seen them, but in the last year I've been noticing more of 'em, and seeing them a lot clearer. I'm also experiencing color flashes and static-vision... But I think that has more to do with the bad drug experience I had about a month ago more than anything.

Since I'm pretty much a hypocondriac(sp?) I've totally talked myself into thinking I'm going blind.

But seriously, could there be a problem with my eyes? My last eye check was about a year ago... Could something have manifested in that time period?? It might sound stupid, but I'm scared as **** over here. I don't know if matters, either. But I'm only 18.

http://eye.itags.org/q_optical-eye-health_217998.html