Some of them overlap with depression like lack of pleasure and motivation but there can issues with ability to express emotion like you don't look either happy or sad to your friends just flat and expressionless where if you're depressed you can look sad.

What struck me was how things had no value...things I would normally care about seemed neither postive nor negative just very unimportant in general. Things essentially become neutral and valueless.

Again they are new to me so I don't know much....you might get better answers on the sz and p forum or the sza forum if you think you might have them. Also I would ask your pdoc and T because they would know better...