One side only?

[Tonsley38]

I am struggling at the moment to Breastfeed my 13 week old from the right breast...left one is fine.

As soon as I lean her back to feed she tenses up, arches her back and screams even before she has reached the breast. The confusing thing is that she feeds from it perfectly at 3am and sometimes has no issue at other feed times.
I have tried the rugby ball position to avoid leaning her to the right but she only feeds for like 3 mins that way....
I think my flow from the right is faster, but she often doesn't even get to it before she cries. Is this reflux?
Any tips?

It is normal for a baby to favour one side.

Perhaps a visit to a baby cafe / support group to check positioning on that side. She may just grow out of it, especially if she feeds ok during the night from that side. My dd would do this.