do I need a letter from my doctor to carry insulin , pens etc and to confirm that I am type 1 diabetic ?
Or will it cause problems without?
Thanks
Airport staff are well used to seeing T1 kit, so the chances of you being stopped without a letter are pretty much nil. Put it in the see-through bag and it'll float through, no questions asked.
There's lots of T1s here who've travelled extensively and none have been asked for a letter.
But (there's always a but), it only takes one "jobs-worth" member of staff to mess things up, so, if you've still got time before the holiday, I'd have a shot at seeing if your DSN or GP will do a letter, just in case. DSNs generally do them for free, GPs will charge about £25.
I'm not sure if the continuing brexit fiasco will change anything here. I suppose, depending on the politics of the particular customs checker you get, they might get a bit more high and mighty - I always feel more comfortable with a letter just in case.
My current one is about 17 yrs old, never been asked to show it.