Anyone who didn't respond to Concerta but responded to atomoxetine?

Hello ADHD folks,

I've been on Concerta 18, 36 and now 52 mg and tbh I feel no improvement... I'm thinking of asking my psychiatrist about atomoxetine (he also commented on it in the past) since I'm a bit scared of jumping to Concerta 72 mg (not sure if he would tell me to do that tbh) cause it's a high dose, my resting BPM is high (85-95) etc.

Anyone with a success story with atomoxetine/Strattera after failing with Concerta?