I think something might be wrong with me?

Recently, I've begun noticing small, insignificant things. I notice things like the number of flowers on bushes; tiny bugs on windows; spills; small, specific pebbles; etc... At first, I thought I was just becoming more interested in nature or something, but now I'm noticing the names of waiters who have nothing to do with my table, and I essentially scan people on the street, and becoming more interested in what's going on around me than what is actually happening TO me. I can't eat out because I can't focus on anything long enough to actually eat, and it's getting to the point where now I can't even eat unless I'm alone in a quiet room with only my music. I've actually lost weight due to my inability to eat. I've become distanced from social aspects of life, I can't talk to people because I keep focusing on insignificant things. I can't, in essence, tune things out. I think about everything and anything I see, I look at everything, hear everything, notice everything, and it's driving me insane because I legitimately think I might be going crazy. What's going on with me?