I would say it's more of a sense of dreading. Not necessarily fear. Like if I know something is gonna happen which is gonna put me in an awkward spot, I (quite naturally) don't like that and don't want it to transpire. And therefore, as the date of it draws nearer and nearer, the feeling of not wanting it increases to the point to where it becomes.....more than a slight irritation.
But also, if there is a certain type of thing that I just don't find pleasant that happens regularly, I cannot relax even when I have time to relax because all my mind wants to do is constantly be on alert for it and to be dreading it. And often, these types of things are unscheduled events so they just happen when they want to. And so, you can't know when they'll happen. So you can't relax at any time of the day or night. And as soon as you do, that's guaranteed to be the moment when it'll happen. And it'll be all the worse because it caught you off guard. Which is (funnily enough) a diabolically harmless-seeming sort of trauma that is cumulative and can really mess with you over time. And thus, a lot of people just don't "get it" because it seems ridiculous if it isn't you.
In case of emergency, my husk can be used as a flotation device.