Thank you to everyone who has already replied to my post today about my condition. I've been told it's Giant Cell Arteritis, Vasculitis, Aortitis, depending on who I've seen in Rheumatology.
It's such a relief to be able to connect to other people with the same condition as me, because most places I've looked for information and support only refer to cranial or temporal arteritis which is not what I have.
My symptoms started with what I now believe was PMR. I was waking up in the morning unable to move due to severe pain and stiffness in my neck and shoulders. These symptoms were joined over the summer by weight loss, night sweats, rapid heartbeat, extreme fatigue and a general feeling that something wasn't right. I was only diagnosed after many other possibilities had been eliminated, including cancer in various areas, and a fantastic doctor who finally suggested a CT scan , where they found the severe inflammation in my aorta. I was immediately admitted to hospital and given IV steroids to try to bring my inflammatory markers down (they started at 132). After being discharged with a bucket load of medication, I was told to "live my normal life" I found that this was a long way from being possible and spent 6 weeks wondering if I would ever be 'normal' again. It was such an effort to do anything, I couldn't walk ten paces so going out was impossible. I lost all my confidence and I had to take a long look at how I was going to be able to continue to do the things I like to do, and had probably taken for granted.
I'm now 5 months into my treatment and getting a bit better at pacing myself, but still struggling with fatigue and now muscle pain too. I know this will be a long road but I'm trying to be positive and look ahead to the future with more confidence.