I'm glad you are feeling better in the short run. It is not impossible the meds are allowing you to feel what you would otherwise be unable to feel.

Why is this med trial limited to six months? (Please feel free to ignore these questions.)

Knowing this elevation is temporary, can you exploit it as an opportunity to move toward some sort of goal? That goal may require several "bounds," each bound broken by depressive lows.

Do you have a goal that permits reaching it by bounds rather than constant, sustained efforts?

As artificial as you may feel your lifted spirits are, may you enjoy and employ them.