I have a number of earrings with post/butterfly backs that I can no longer wear as, firstly, the post pokes into my head when I'm on the phone or lying down/leaning against something with ear (not sure why this wasn't a problem before but somehow it's only started bothering me in the last few years), and secondly, a few of the posts are too thin and the butterflies/backs (I have tried all sorts) fall off and the earrings come off.
I generally prefer closed fastenings on my earrings, so I have a number of dangly ones that I've changed to closed french clasp (or whatever it's called). Is there anything similar I could do with the studs and open hoops with posts? I don't want to change them to hanging earrings (I've seen converters for that), I still want them to sit directly on the ear iyswim, but without the pain or danger of slipping off.
TIA