13 year old is peeing into tubs in her room

Hi all,

I have just come across this forum and thought I would see if anyone has been in the same position and has any advice they can offer me. 

My daughter is 13 and we are currently waiting on an assessment so not officially diagnosed but I strongly believe she is on the spectrum somewhere.

She has always had problems with bladder control and we have been referred to specialists but none seem to find anything wrong. She has recently, over the last few months started peeing into things in her bedroom which is never big enough so it spills all over the carpet. She will wee into anything, pots that are meant to be draw organisers, bowls and even sweet packets. She then hides them under her bed. We are constantly (twice this weekend) cleaning the carpet with a carpet cleaner but her room smells awful.

We have tried to talk to her but she won't admit what she is doing. She likes to keep such a clean and tidy room so this is bizarre that she doesn't seem to mind her room smelling of urine.

She has her own bathroom literally next to her bedroom, we have a nightlight just outside the door too but she just won't stop doing it.

We have also recently discovered she started her period but won't talk about it and she is hiding used sanitary towels in her draws with her clean clothes. We just don't know what to do to help her!

Has anyone else experienced anything like this and have any advice?