My doctor put me on 20 mg citalopram for depression/anxiety. I am a 59 year old male and have always tried to deal with life by being strong. I did not realize that i needed some help. Anyway, i have noticed that a lot of people have a good response with this and i am going to give it a try. Some have people have stated that it makes them tired and that they yawn. Would it be better to take it at night or in the morning...