I am a woman of 43 years old. I had flomax before without side effect whatsoever. I was 37 or 38 when my husband and I decided to take action regarding the UTI that I had been having, most of the time happened after having sexual activity. It's horrible that when we're having sex, the thought of having UTI was hoovering our mind. Sometimes it did stop us to engage in it. So, we saw an Urologist and he prescribed Flomax. I was so lucky that it did helped me so much with no side effects. After a while I stopped taking them, because I don't have that UTI anymore even after having sex. 
Recently, I had that UTI again. So, I thought I would just take Flomax that I have left over, around 7-10 capsules left. This time I do experience the side effects, especially the closing of my throat. I have trouble swallowing now, even just drinking the water. 
I am gonna blame the wine that I actively taking in the last 2-3 years as our marriage is in the rough patch right now. I am not sure though. Because what I read it was beer which contains yeast that might caused the side effects of flomax to show. And I don't think wine has yeast, right?  Anyway, if anyone has info for me, I appreciated.