Sidi's are generally acknowledged to have a pointy toe box. I developed Morton's by wearing Sidi Genius 5 Narrow shoes. I have a pretty average forefoot width and narrowish heel and my foot overall is low volume. You mentioned $300. If you have foot pain, you need to make a change. You may very well want to keep your Sidi's if wide enough which may well be if you have the standard width Sidi's with a narrowish foot that you mention. You will need to change the floor of the shoe. Your narrowish foot is likely pronating in the shoe. Again...a foot is a suspension bridge. If you load your foot and it is unsupported the toes smash together. Do a search for metatarsal pad. Remove the shoe inserts and tape a lift or pad right behind the balls of your feet which are called the metatarsal heads...which are crashing together because your foot is not properly supported. There are four arches to a foot. Cycling is repetition. If you repeatedly load your foot compressing your toes together you will cause further damage. I suggest you change your habit asap. Any hot foot or numbness is a precursor to damage if unaddressed.
Good Luck.