Is there ever a correct formula?

Hi,

I'm really struggling to find a formula that will fill my 2 week old baby without giving her issues.

At first, I started with Nan 1 Opti Pro and that gave her severe cramping. She was constantly in pain.

Then I tried S26 gold and that was going well but I've noticed that it's made her heavily constipated.

I just purchased Novalac infant formula and though it's only been a few hours using it, I noticed that she is still cramping and is trying to hard to pass a stool.

I also give her Iberogast drops for her cramping and that seems to combat that issue but she is still quite constipated and I am one sad mama.

Any advice?