I have shared the chapter on ADHD from my book Breastfeeding and Chronic Medical Conditions multiple times this week. Many mothers seem to be diagnosed in later life and are concerned about breastfeeding. Hope this is a useful link.
More information Breastfeeding and ADHD factsheet
If this is useful maybe you need the book available on Amazon. I published on Kindle to try to make this more affordable and available to mothers and breastfeeding supporters as well as professionals