Hi. I 'm having a MRI and Cat scan soon to check for vasculitis and I'm worried. I do nt know why as I've had both before but after reading up on vasculitis it's scared me. Is it as bad as I've read online? I've had neuro symptoms for years and thought I'd got my head around things but I've got myself in a flap about it now and can't get out of it. The unknown is scaring me where as it never used too.