Flomax and lack of motivation

Dosage: 0.4mg / Day for 5 days.
Age: 26
Occupation: Chemist

Physical:
Feels like something is pulling down on my lungs inside of my chest. Sinus blockage. It feels actually like Viagra where there is swelling in the sinus cavity but not due to mucus. Result is a slightly blocked airway in nasal passage. NO EJACULATE, able to orgasm, but nothing comes out. (A good male birth control pill?) Sporadic, short headaches (~2-4 / Day). Shallow breathing, shortness of breath after going up stairs. Feeling weak all day long. Most of these probably due to lower blood pressure.

Mental:
Wanting to sleep more. A small lack of motivation to socialize, but not major. Annoyed / Angered more easily and often. (could be due to NO EJACULATE!!) A little humor there. No, seriously, I am really easy to agitate now. I wouldn't say lower sex drive, but more controlled sex drive. I felt horny most of the time before Flomax, but now only when engaged in sexual activity. (kind of nice actually) Haven't noticed anything about dream alterations.

Side Note:
The ejaculation part scares me a little bit just as others have expressed. As long as it comes back when I am off that is fine. Flomax DOES NOT shrink the prostate, it relaxes the prostate. I can see why this may cause a lack of ejaculate since the prostate in a way, a sperm valve. I feel like this should really be listed in the side effects but I know that masturbation is not part of clinical trials. Interesting though...could it be used as a male birth control pill? The first few days, a small small volume of ejaculate came out. Now, at day 5, dry as a bone.