Hello
As due to tablet for benign
prostate enlargement ( flomax ) , you got erection ,because erectile disorder is a common side effect of flomax.
Anthow, you ejaculated after
masturbation ( ejaculation after very very long time )and this ejaculation was in a ball form ,when it passed through URETHRA , you felt excruciating pain ( because urethra is very soft and semen in ball form causes injury ) and this pain is due to injury caused by hard semen ( in ball form ).
You took cipro and phenazopyrine for UTI.
When such case visit I prescribe lidnocaine (
xylocaine 2% for local application .
Pass xylocaine through urethral opening in urethra ,once or twice in day for 7-10 days and you will get complete cure because within this period
urethral injury will heal.
As far as concerned about
constipation , take laxative liquid for some times ,as this is not related to penis injury .
High fiber diet will also help .
Once you will got relief for urination ,you will get relief in constipation also.
So for this consult your doctor and take his help.