Hi, a few weeks ago I started taking Adderall xr, 20 mg in the morning and either 10 or 20 in the afternoon. My concern is that I've experienced a fluttering sensation in my chest -- not necessarily speedy heartbeat, but a kind of irregular offbeat fluttering (not sure how to describe it).

When I try to go to sleep at night, I can definitely hear/feel my heart pounding too. Is this normal? Is my dose too high? The 10 mg alone doesn't seem to control my ADHD symptoms. I've talked with my primary psych doctor and he said it's not anything major to worry about... but thought I would check here.

thanks for any advice!!