SITE ISSUE | WTF???

Hello all! Just a quick note to say that my blog, over night, somehow seems to have completely had an identity crisis. Menus have appeared where there were none, post images have become too big for their boots and distorted themselves, and I have my suspicions the issues have only just begun. As I am self-hosted (specifically so that I’d have more ability to customize the appearance of my site – yes, the irony has not escaped me), there’s not really anyone for me to complain to or ask for help fixing the issue. I’ve tried going through all the settings in my theme, but can’t seem to find any way to fix the issues. I’m playing around with other themes to see if I can find another one I don’t hate, but so far no luck. As the content is still there, if unappealing, for now I’m just going to wait a bit and see if someone who has more power and ability than me figures out what’s going on and fixes it in the same magical fashion as its magical dramatic messy reincarnation. Please bear with me, and I’m sorry for the current state of things!