I'm taking Adderall 10mg (for 5 months), and have been on Lexapro 20mg for a couple of years. I've noticed there are times when I can't show emotion, in circumstances when I should. Can the meds cause this change?

Stimulants are supposed to improve emotional control in those with ADHD. However, SSRI's (like Lexapro) have been known to make people emotionally flat and overly inhibited. I would tend to think the Lexapro would be the key player here.