Dreams

So I started on 10mg of escitalopram in May and gradually increased dosage. I've now been on 20 mg for 4.5 weeks now and these past few days have been a little challenging with the side effects. This morning I feel great though, probably because it's Saturday lol. It's now been two nights in a row where I've had dreams I can actually remember! I haven't really "dreamt" in 30 something years, and the dreams have been cool (one a little weird but still cool, lol). Does this mean the medicine is really starting to work?