Uraluni, your not alone on this I have had the same discomforts, recently, and it really bugged me to the point I was not wanting to dive as much, I am thinkin as I got older and to be here on earth longer for my wife, was the problem. I went through a stage of these attacks, Then it was time to put an end to it. I dove deep, deeper,deeper and styrd longer, longer. This week alone I have dove deep deco dives bout everyday. I am going through a divorce, and it is comming to an end. I can't say that not having someone to come back to is it, but it is pitch dark down there, and bymyself, I think if something come into sight will i freak, or just look at it. Now I just do air, and that is what I like best, for deco obligations are a piece of cake. Now I hope you can go down and think that everything will be fine, thats what I tell myself. Yet as I am the only one in my life now, I have not a single pressure, weather or not, If I get into trouble would it matter. Like todays dive could be it, and I really dont care. I am addicted to it and right now in my life diving is all I have. On your next dive when you get to a hundred, stop breath and look at gauges, go through your dive plan in your head and then start to look around, make sure your air consumption is fine and that your are breathing continiously, yes basics, and then your narcosis is now under control. from your avatar, you have dark water at depth also.
Just my experience as of right now. good you can confront. My wife just did not no what was wrong with me and run, run away as fast as she can. I am not at all knowing if this will get my life on earth back on tract, But to be happy down under is all I care about, at this poit.
Happy Diving