Convoluted

I’ve been feeling a bit down today. I don’t know why. Does anyone have any ideas? School is going okay. The submarine project is about to take off full speed. I’ve been having a lot of fun taking pictures lately. I’ve had a lot of fun conversations with friends and with Inga. I haven’t been getting into arguments with anyone recently. I just feel a bit depressed. This has been kind of under the surface for some weeks now and it’s starting to annoy me. I have no reason to feel anything but happiness. So what’s wrong?! The human mind is a twisted thing. I just don’t get it.