Welcome, and glad you found us!
I'm wondering if you've had a full evaluation/followup by a neurodevelopmental pediatrician at the children's hospital? Full disclosure - I'm a mom of a former 30-weeker (23 years ago) so my bias when I hear about former preemies with- ADHD/learning disabilities is that it may be a function of prematurity-related issues, developmentally speaking. I believe the Canadians have done *extensive* research and followup of former preemies, and I seem to recall that the incidence of ADHD type symptoms and LDs was much higher for preemies as they progressed through school. Even though it sounds like she had a pretty decent NICU course, I would still think a full developmental checkup might be a good idea. I would think they could also hook you up with a nutritionist - don't know if feeding has always been an issue for you guys, but calories in/energy out has ruled my world for over 2 decades now.
I've found occasional tune-ups with- nutritionists to be very helpful. The hypersensitivity to sounds is so familiar - makes me think sensory issues, which again are not uncommon in preemies. But again, that's my bias, just based on life with- a former preemie.
How are her fine/gross motor skills now?
I know others will be along shortly with other suggestions. Again, welcome and glad you found us.