hmm, wonder why the cats have it then. I'm guessing cave adaption for the dwarves, I've noticed an unusual amount of vomit here and there.
I'm going to slaughter most of my cats with an atom smasher anyway, they are getting too numerous.
oh! If I have a dwarf that is too injured to do... anything, and he is spamming me when he tries to store items he owns etc, what is the best way to stop that?
I have found some of the inaccessible stuff, but the message still pops up periodically.
While atom smashing them is an entertaining choice, I usually go for butchering them all except for 2 females and a male, to keep the production of ☼Cat meat roasts☼ going.
I don't know how cats could be stunned though, my best guess is that they somehow got exposed to cave spider venom(or worse, GIANT cave spider venom). If this is the case, it should wear off soon. And for the injured dwarf, the general solution is to build a hospital, assign a chief medical dwarf, enable healthcare professions on some dwarves, and build at least one bed and one table and put them next to each other in the hospital area. A detailed tutorial on setting up hospitals can be found
here.
Finally, for the cancellation spam, make sure that the dwarf trying to access it has a clear path to the item(is he locked up somewhere? Is he assigned to a burrow?), and that the item is not being hauled or otherwise in use by another dwarf. If the item is a dead body stuck in water, then they cannot be accessed unless the water is removed(for example, to access a drowned dwarf in a reservoir the reservoir must be emptied below 3/7, or for a river, when the water freezes, the body will dissapear).