stiff neck and flat head

Steph
We have nine week old twins and one of them has a stiff neck and a flat head on the right side. At our one month check up their doctor said to do lots of tummy time and that's all she said. And at that one month check up she just said it was a flat spot nothing about a tight neck. 
Being new parents and also sleep deprived I didn't think to ask any other questions. 
At their two month check up yesterday she asked if I was doing neck exercise with her. I said no we have just been trying to turn her head a lot. I am mad that she didn't mention that a month ago and show us what to do to avoid it getting worse. We now have to go to children's for therapy. 
My husband and I think she may have started this is a problem in the womb. 
As any other baby have this issue and how's the therapy going?

Glow Resources

Let’s Glow

Glow is here for you on your path to pregnancy

Glow helps you navigate your fertility journey with smart tools, personalized insights, and guidance from medical experts who understand what matters most.

25+ million

Users

4.8 stars

200k+ app ratings

20+

Medical advisors