Am I going crazy?

10 dpo... No matter how I filter the picture, I still see an EXTREMELY faint second line. Correct spot, thick, it's there.. no one but a handful of people can see it, however, and it's driving me crazy. Maybe I have the worst line eyes on Earth, but I would bet everything that I indeed see a second line.. I need some good squinters :( gonna retest in 2 days, but if this is indeed a vfp I would like to know :(