Hi. I Was Wondering What It Means If I Can

Hi. I was wondering what it means if I can feel my heart beating in my eyes. Today my vision was a little weird. When I looked up at the sky there seems to be a barely visible screen of miniature dissolving cloud-like images over the real sky. No, I am not taking drugs! I did eat a ton of salt before I went to bed, last night, though, and there was MSG in the chips I was eating. Thanks.