Yes to all of this. I’ve been in that same situation in clothes shops many times and the worst is when you put your hand in a rail of clothes of pull something out and your hand lands on a button. Instant recoil in horror every time.
Any idea what your phobia is rooted in? Im not really sure where mine comes from. I think there’s an element of the constriction/being trapped that being buttoned into something represents and then maybe the physical repulsion at the sight of them developed from there. They’re truly horrible things to look at though. Ugh…
On a similar note to your chocolate present, on my stag do I was presented with a flat cap to wear which one of my friend’s partners had carefully sewn dozens of buttons all over the surface of. Every shape and size imaginable. Literally the stuff of nightmares.
It resurfaced again from somewhere on my wedding day. You can’t see many of them fortunately, but enough to get the idea. Someone had to put it on for me. To the clear amusement of Mrs Z: