Hmmm... Years ago a neurologist put me on stimulants alongside my antidepressant medication. The depression did not lift, but I had a few episodes when I felt semi-euphoric. It was definitely strange and unsettling. They took me off the stimulants after a couple of months.

My experience differs from yours, but the few times I was then in an unfamiliar mood state (a state they weren't aiming for) were odd and frankly unpleasant.

"Observe & report."