Hello and welcome

Hey! Nhs doctors can be awful im sorry you’re struggling to get your needs across, there’s a patient advocate scheme where you can bring in a third party to your appointment to get your point across which i’ve heard can be amazing (some people use family members too) - personally i changed gp and have had a lot less issues since but still not 100% but this could be an option for you too!

I got lucky with my doctor, he was familiar with chronic pain conditions and helped me figure out what was wrong with me far quicker than expected. But when I moved to uni, the doctors there weren't as helpful and dismissed my (diagnosed!) condition. It definitely helped me to have every trigger, symptom, and noteworthy events in a journal to show them, as well as writing down what I wanted from that appointment each time. Try and do your own research and look at your medical records for previous tests. As frustrating as it is to essentially do their job for them, it'll help you get decent help faster. Good luck!