Is it normal to be think that consciousness doesn't exist?

Hey! Welcome to the site (if nobody else has welcomed you already). This is the kind of question I love, so you've made a good start already.

I hope people think (or think they are thinking) before they answer because it's a big question. My initial reaction was to fall on the same side as you and say that it's all biochemical and bioelectrical processes (and include some rhetoric about determinism) and, as such, I have the same consciousness as a rock. Which is, strictly, none at all.

But then I thought about it more and, although I agree with what I said, I can't deny that the range of biochemical reactions going on in my body is more complex than in other hotspots (i.e. other life) and other non-hotspots (i.e. a rock) and that, for various reasons, we have to qualify them and that my body's processes as a whole should be called physiology and that my brain should kind of have its own semantic structures for its processes. Consciousness is just one of those but, in the sense most people mean it, it doesn't fit the bill. We don't see, hear, feel, or think. Not really. Although then you get into defining what "we" are.

It's a huge question and I've only given you the tiniest scrap of a partial answer (which itself is only my opinion as opposed to any kind of fact).

P.S. Hope you stick around. IIN has been kind of unbalanced recently and many of the questions aren't really questions at all. There's room for everyone here and you will find yourself filling a gap in the market with interesting questions like this.