An update from me guys. I am one of the 15% of men who experience pain post-vasectomy (see earlier posts).
I went to the pain clinic in March, and was prescribed Gabapentin. This has been a wonder drug for me. I take 1800 mg per day, and the constant ache is gone, along with most of the sharp pains. No side effects (pregabalin turned me in to an angry zombie).
Now, the trouble I had was, at that time I was on 8 tramadol a day. Coming off the tramadol was a barrel of fun (insomnia, sweats, muscle tension) but i have not taken any tramadol at all in 2 months. Not needed it - whenever I do get a flare up paracetamol does the trick.
Don't get me wrong - I still get pain. After ejaculation, I get a bad half hour of building ache.
All thanks to the snip.