First of all - they're NOT silverfish.
They are about 3mm long and are a dark brown colour. I took a pic of one and zoomed in and, on googling it, it seems to look exactly like something called a "confused flour beetle". However, on reading up on them, it seems that you would usually expect to find the cfb in your kitchen pantry, not climbing up the bathroom walls! Also, the bathroom is the room furthest away from the kitchen in my flat and there are never any of these insects in any of the rooms in between or in the hallway - they literally are only in the bathroom.
There are usually about 2 or 3 of them when I go in the bathroom.
Any ideas what they could be if they're not "confused flour beetles", or can anyone who knows more about confused flour beetles than me tell me why they would be in my bathroom?
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