Actually, if anything, uridine has increased my creativity..
I never had an artistic side - I'm very much more into technical details, but in the last month, I've started feeling urges to express myself in different ways (attached doodle was of my wife's face, on a 4 hour train trip recently, drawn on my phone) and I even made some interesting 'snow-people' on holiday.
http://imgur.com/a/D40CZ
(That's me, all ninja'd up for playing in the snow.)
Bear with me, these are my first creations since school, some 20 years ago!
That's a very pleasing snow person, but I'm sure it had to do more with concentration, memory, and perhaps other ordinary cognitive functions. No offense, but they are quite banal those snow people.
Making something transcendent out of something ordinary is creativity, not just spitting out calculated solutions worked out by the brain. That is what computers and robots are for. Creativity brings out something from the unconscious that is almost impossible to replicate by anything else known in this universe.
Your urge to express yourself may have more to do with higher dopamine levels and therefore more motivation. Motivation and creativity are very different.
I'm sorry to say that you may be lacking creativity.
What is that picture that you attached? That is creativity, and that is incredibly beautiful. My god, I see it.
A women I adore, but does not adore me back. Such a beautiful women. Her depression makes her even more beautiful. That mellow eyebrow of hers, makes me want to give a long hug. Alas, the unrequited love, it hurts. It is unbearable. She seems to be playing some sort of instrument, showing off a sign of enviable intelligence. You envy her, yet you love her deeply.
The unrequited love, it hurts. At times you wish she were gone, because the pain is unbearable, but incredible.
The picture you attached may be the most beautiful thing I've seen in a while.