Could Ortho-K lenses be making my eyes bloodshot at night?

[RedEyeGuy]

My eyes tend to get bloodshot at night, every night. Really really bloodshot, to the point you can't even see any white. It starts around 5pm and lasts until morning when they start to clear up a bit, although they stay slightly pink. Could this be caused by the Ortho-K lenses that I've been putting in at night time? It's strange that they get red even BEFORE I put the lenses in. I usually go to sleep at around 10-11pm, but my eyes start getting red at 5pm. I've had this problem for years and been trying to work it out for years, but I'm still no closer I'm sure I'm not allergic to the solution because I'm using preservative free sensitive saline solution after trying many others.