Schimaera

Heyo guys, pretty new here and just started playing a few days ago. Disclaimer: Because I just entered Hoenn, I can't provide any more insight from other regions though I encountered the following 'issue' in Johto and Kanto as well: Ever since I started Johto, I realised that I couldn't purchase any more Status Cure Items in Marts other than Antidotes. In Kanto, after progressing a bit, stores started selling Para Heal, Awakening etc up to Full Heals. Somewhere in Johto I couldn't find any more items than the ones listed below - picture taken in in the Pokemart in Fallarbor Town (Hoenn). I just asked a friend of mine if he can purchase other stat heal items (he's also in hoenn and tested it in Lavaridge) and he confirmed that he can still purchase other status heal items. He initially thought that I was maybe missing badges or something but got suspicious as well when I said I had this problem since midway through Johto. I tried googling the issue but couldn't find anything. Can anyone confirm this issue or point me in the right direction in the case that I missed something crucial? Thanks in advance :)