I have an Apex-Gear Covert Pro dot and when fully drawn and getting ready to shoot I see what looks like would be two dots, but with a line between them. It's small a small distance and when putting the target in the middle for the most part I hit where I want. Though Ideally this is not the way I would like and want to see just the dot. I have moved the site all around and nothing changes it, so that makes me think it's my eyes. I shoot both eyes open, but it doesn't appear to matter as when I close my left eye the issue is still there. Any thoughts?