No, I don't take any medication but I often think that dreaming the way I do is something to do with the subconscious, I think there is a reason behind it.
For the past 2 years or so I have had really heavy and clear dreams nearly every night.
Not nightmares but I can remember everything about them except if they were in colour or not but I think they are, they often wake me up at about 3am and I can't get back to sleep.
The power of your brain...