Lamotrigine really helps my bipolar symptoms, but the brain fog from it is really starting to impact my professional life. I’m diagnosed with ADHD and lamotrigine seems to really exacerbate everything that comes along with that. Unable to focus, with a nonexistent short-term memory. Vyvanse really helped with that for me in the past. 

TL;DR 
I’m wondering how the two drugs interact and if anyone has experience taking them together that can lend me their opinion.