It's a complicated thing. I don't even think people stay on one colour or position in the wheel. My DS goes from being sensitive to certain noises for days, then suddenly not bothered. Not wanting ears touched to not minding, then back again.
This is how I experience things as well.
I don't consider myself to suffer anxiety, but I describe myself as sometimes having an 'autistic flare up', and the only way I can describe it is that I sometimes have periods where I feel far more dysfunctional and at odds with the world, and it manifests itself in what would commonly be described as symptoms akin to those in people with anxiety.
I'm perfectly accepting of the fact that this probably is co-morbid anxiety that goes hand-in-hand with my autism, I just don't describe it as such.
A couple of examples would be -
Ordinarily I'm fine in the majority of social situations, especially so with people I know well. I'm completely at ease eating in restaurants etc, though even when I'm 'well' I have a couple of foibles such as having to sit with by back to a wall, facing into the room etc. When I'm having a flare-up, I still attempt to 'do' restaurants as normal, but I'll be extremely ill at ease, can't sit still, am paranoid about other diners looking at me, can't make eye contact with my friends or partner, become extremely irritable, lose my usual easy-going demeanour, will bristle at someone assuming I just want my 'usual' drink etc, choose things from the menu I know I can't tolerate etc. It's a totally different experience.
Similarly, I get up in the morning, put on my socks, think nothing of it. If I'm 'unwell', the act of putting on a sock can cause a cataclysmic meltdown. It's me versus the sock. My foot suddenly becomes unreceptive to socks. I rage at how badly designed the human foot/ankle/leg is, before I know it I've blown a gasket and I cease to be able to function normally
Nothing is constant. For the most part I'm generally on an even keel, but I definitely subscribe to the view that autism 'flares up' and then recedes for some of us.