Should also accept "Julia's head is not in pain".
Yes it is accepted
Why is it के?
I also don't get it.
Because of the postposition में, the first three words are in oblique case. In direct case, it would be का, but in oblique case, का changes to के.
I send my letter link
Check on the Link on Letter My one is ph. 9LzuUe
We do not have lives
Julis's head is not in pain.