This question is a year old - how has it affected you in the last 12 months?
Flomax initially can have the effect of giving you aching hamstrings, a weird one, but I definitely felt it for a few days after starting on it.
Also was the occasional dizziness when sitting up- from lying on the left side, putting feet on the floor and standing up, making the canals rotate left to right. Fixed by either sitting up slowly, or turning my head before sitting up so that the rotation was front to back.
Aircrew medical factors were never a problem with this drug. Was on it for about 3 years. Flow was improved, but capacity was low due to being squashed by the prostate.
But don't need it any more, radical prostatectomy 2 years ago.