Neville was chipped with his 2nd injection at 12 weeks.
Vet took him away to do it and he yelped a lot. I was assured he was yelping at the way he was held and that he didn't murmer when the needle went in (it is BIG).
I love my vet loads - he's brill but I'm still unsure whether he was telling me the truth. Neville was in shock for approx 5 mins, but was soon fine again. OH nearly had me chipped when he heard Neville cos i was the one who insisted it had to be done.
We were told to be careful around the neck area for 24 hours later, incase he was sore, but no long lasting effects.