My boobs are shrinking!

I've always been really small anyway but they are literally disappearing and I'm worried!

I was always self conscious of how small they were anyway but learnt to be okay with them. But now they are basically completely flat!

I've not lost any weight, if anything I am putting weight on. I'm 25 now too so surely they stopped growing. I'm not pregnant and am into my third year of being on the implant. So not had any drastic birth control changes either.

Honestly none of my size A bras fit anymore like I have to go braless but then that just makes me look flatter. I can put a book on my chest and it will lie flat against that bone in the middle connected to your ribs.

I don't know what to do 😭 I really really don't want to lose what little boobs I have.

Also they have been like this and getting worse for about 2 weeks now. They used to grow slightly just before each period I had but they never shrunk. And my period is not for another couple weeks. (I have one every two months).