Diagnose with urethral stricture ?

Hello I was born with hypospadia so I had a major reconstruction surgery when I was a baby never had a issue with my urine stream till 2 years ago I started noticing urge to urinate and constant burning went it the doctor a few times they kept thinking it was UTI long story short I couldn’t urinate 3 weeks ago had to go to the hospital right before they put the catheter in I was able to urinate on my own I ended up doing a urethrogram which was with a small catheter anyways I’ve been able to pee fine since than my next appointment is on December 14 soonest they’ve had my worry is with a stricture in the urethra does it get inflamed which is what causes the not being able to urinate ? I also was wondering I was able to pee before the procedure so did the procedure end up opening the stricture a bit ? 

Can I workout ?