Hi Badger,
I had 20 fractions of SRT without HT in July 2022, I had surgery in November 2019 and was 4+3=7.
I found it pretty straightforward, there was the daily grind of driving round the M25 to and from the treatment centre. Symptoms started kicking in around a couple of weeks in, nothing else to worry about.
It took a year for my PSA to drop back to undetectable though, guessing maybe that would have been slightly different if I had been on HT, who knows?
Chris' link is worth reading, not just because I posted there 😁.
Good luck.
Kev.