Trevor is at the surgery in Byker in the city centre.
Didn't realise there was one in Alnwick, you learn something new everyday!
I got told there were no problems the day I done it, although he said he'd phone me in a day or two when it was ready (had it done at 8.30pm so it was getting quite late and Trevor looked knackered) got a phonecall a couple of days later saying I gave him the wrong prescription. I took the right one along the next week and he stamped and signed the certificate right then and gave it me.
Since I've only had the one medical so far I can only speak from my experience.
Good luck with your medical, and with the first solo when comes along!
Big Steve