Is it normal that all i want from life is to be high
So I've been smoking since I was 15( currently 24) and put has always been a source of happiness for me. Most of my life I had the rule " never drink or smoke to make yourself happy when you're sad ".
Lately though all I've wanted to do is smoke myself stupid numb to the point of where I can't think or function. I have times where I feel so agitated with myself from being around people, friends, work, playing music (which brings me joy), feeling normal human emotions and basically living life that I have strong urges to smoke myself stupid.
I don't want to use it as a crutch but I it's the only thing that keeps me feeling alright with my own existence. I don't want kids, a life partner ( love is a biochemical reaction and nothing more), or even a meaning to life. I'm a scientist and see the whole thing to be completely meaningless since inevitably the universe will also end and time can never remember us past then. So my question is " is it normal to want morning more out of life than to smoke Weed and wait till I die of natural causes?"
Note: please don't think I'm sad or depressed. I don't feel sad thinking this way or depressed about this hypothetical life at all. I just can't seem to find anyone who feels the same.