I’d be interested if you were able to share a link to where this was on the NHS website - do you mean
www.nhs.uk or a local Trust website?
The official NHS website gives the following detail:
View attachment 1539816
You’ll see the amount you’ve been having is borderline fine, and that the info on your fact sheet is at odds with this advice as it seems to suggest herbal tea is fine when in fact that should also be limited.
Ultimately most things are ok in moderation aside from actively dangerous substances like alcohol, drugs, cigarettes and even then people consume them in pregnancy knowingly or unknowingly and have babies at the end of the process who are often healthy.
My mum used to have about 20 cups of tea/coffee a day when she was pregnant - she claims there was no advice to say it was bad. My thoughts are that is wildly unhealthy no matter if you’re pregnant or not, but times have moved on!
I remember your first post when you talked about feeling crippled with anxiety and I wanted to reach out to say that it is important to be informed, but make sure you’re using trusted sources of information but also applying some common sense. I know how anxiety-inducing pregnancy is, and as someone who has never experienced it before I’ve found it really challenging. You just need to try and keep it in check, not seek out bad news or catastrophise about something because it’s adding to your load.
Switch out the Diet Coke for caffeine-free, try to limit yourself to one cup of tea and one of coffee a day and you’ll be within the limit.