Had my vasectomy 9 years ago.
Procedure was supposed to be very straight forward. However I didn't get enough anaesthetic. As a result, I could feel all the "pipes and tubes" being tugged, twisted and cauterised. Towards the end of the procedure, the Dr finally realised something wasn't right and gave me some more. Not the most enjoyable experience of my life.
Post op: walked home very gingerly. Discomfort for a few days.
The worst was a few days later. I wasn't made aware of this and not sure if any other blokes experienced the same: apparently, because the "little swimmers" etc continue to be produced and the tissue that stores them is effectively all sealed up, these tissues can and do rupture. So for the period of around 24 hrs, I had the most awful sensation and pain of this rupturing in my bollocks. Sorry if TMI.
Had discomfort after orgasms (30 mins or so) for around 6/months after and have had a couple of bouts of inflammation that's lasted around a week (the most recent around 6 months ago).
So the consequences were a lot more than I had expected but I can live with them. The procedure itself wasn't supposed to be too bad.
Very glad I had it done as we had already had one surprise happy addition to the family and didn't want any more. Made things more relaxed in the bedroom. I wanted to take responsibility for birth control myself.
I'm sure it will all be fine