I believe the GFCO does use a common logo for certified gluten free products (those containing not more that 10ppm of gluten) but nothing universal yet from the FDA for standard gluten free products (those containing not more that 20ppm). 

Because I spend so much time reading every word on all food packaging, I personally would greatly appreciate it if there was one common gluten-free symbol written in large-enough text, and always located in the same place. That alone will make shopping easier and faster. I dread having to buy packaged food. Thank you very much for asking,

I do believe that people are under so much pressure up have a sleeping  pattern ,  with working and how households work these days , but in reality there is no wrong or right at to sleep , I believe your neighbour showed this with such a long life , I do exactly the same  at night many times so I hope I live into my nineties also , I have found one thing in life your body knows what's best so good to listen to wat it needs however unconventional that maybe 🤗

Try adding some Thiamine Hydrochloride (thiamine HCl) and see if there's any difference.  Thiamine HCl uses special thiamine transporters to get inside cells.  I take it myself.   Tryptophan will help heal the intestines.  Tryptophan is that amino acid in turkey that makes you sleepy after Thanksgiving dinner.  I take mine with magnesium before bedtime.

I live in the upper mid-west and was just diagnosed with marsh 3c celiac less than a month ago.  As a 51 year old male, I now take a couple of different gluten free vitamins.  I have not noticed any reaction to either of these items.  Both were purchased from Amazon. 1.  Nature Made Multivitamin For Him with No Iron 2.  Gade Nutrition Organic Quercetin with Bromelain Vitamin C and Zinc Between those two, I am ingesting 2000 IU of vitamin D per day. Best of luck, Known1