Being a vegetable

This is what I experienced and wrote to someone dear:
I wanted to share that many a times I ask the question to myself whether I've become a vegetable !
I can see that what other people are doing is being "normal". But as my wife says that in almost all situations my face is "expressionless".. I don't know what to expect out of life. I don't know what goals to put in front of me. I don't know what "visions" will inspire me. Some moments I really get jealous of what other people are getting - but that too does not last long and not inspiring for me to achieve. I don't know whether I'm running out of life. I really feel so much out of the world.
I'm at a juncture where I really don't know what I'm up to !