Hi hun, I have no specific advice, as I'm not really familiar with prem bf bubs. I think you've been doing a fantastic job though!

One thing I did read was that lactose intolerance can be a temporary result of an infection or virus in the intestines. It generally clears over a few weeks, from memory. Maybe you could ask your paed if he would be prepared to see how she's going in a few weeks time. I'm not sure how this would work with prems, but it might explain the possible lactose issues?

GL!