So this is a bit of a vent but mostly a question (above) 

Ive had depression for a long time but even throughout a lot of it I've had a love for buses. I don't know why. I just do. They made me so so happy for a while just watching them drive by, learning about all their numbers and destinations and models. It was a nice thing. But now I can't love them anymore. I feel so empty without it. It's what made me me and now it's gone. Is this a normal feeling. I feel so depressed, no more than I did before but I feel enjoyment a lot less now. Taking the bus is a chore now and I can't stand it. I hate seeing myself like this. I feel trapped in it though and I don't know what to do...

Is this normal? Do these things come back? Is it just a phase I'm going through (not as in "just a phase" in a bad way just in a "is this going to pass" way)