percieved effects of adrafinil

Hi all,
I lurk on this group once in a while and ...

I'm often sleepy in the afternoon and have trouble getting up in the
morning. An underlying medical problem seems unlikely because I've had more
or less the same problem for more than 5 years.
Also I am looking for increased task motivation and attention span.

I've taken adrafinil on and off for around a month now and  its taken me a
while to decide whether it is a placebo or not.

Observations (subjective and unscientific):

*Taking two in the morning results in me staying up later and gettting up
earlier.
*My urine smells like cold tea / fried mushrooms.
* The effect takes a few hours to kick in (2 - 4 perhaps 8), i often still
feel sleepy hours after taking it but sometimes have trouble sleeping much
later.

Would anyone like to share their views on the above?

Sincerely,
Gary