I have hypochondria. Lately I can't focus, my eyes have been playing tricks on me, and I feel like I'm in a dream. Anxiety or something serious?

Extreme hypochondria. presents with 33 possible anxiety symptoms, including the ones you just mentioned. The "dream" sx makes me think you are having an acute version, which feels more like panic, or you are having something akin to depersonalization. This is when your own thoughts seem unreal. In all cases, this requires a visit to a psychologist or psychiatrist for a thorough eval.