Chewing Clean laundry

So, no this is not a trolling post this is real. Lol ever since I was a little kid I loved the smell of clean laundry (who doesn’t right) but I used to take it to the next step, I would chew on the freshly dried clothes and inhale the scent. Weird I know, but it would just leave that fresh laundry “taste” in my mouth. Anyway, fast forward to now I am 37 weeks pregnant and since about 30 weeks I have taken up the old habit 🤦🏼‍♀️ and my new favorite thing is clean socks, I will raid the sock drawers like a drug addict at night and go to the bathroom and chew until my jaw hurts. Now to clarify I do NOT eat, or intake anything, not even the moisture from the wet sock I’ll just flip it to the dry side and start over. I have tried googling this, and can’t find ANYTHING or anyone in common. I’m not iron deficient because my doctor checked.... any ideas? Anybody similar? Lol I promise the rest of my life is normal. 😂 #help