I have pretty bad health anxiety.  Closed feedback loop where I get symptoms that then feed my anxiety which gives me more symptoms.
  
I've been referred to CBT through the NHS and I'm on the waiting list.  I have been trying all week to see a doctor for reassurance or medication but I can't get an appointment :(.
  
I'm really struggling today with high anxiety, how can I reduce it without any medical intervention while I keep waiting.  
  
It's all I think about, I'm convinced I'm going to die even though I know I'm not.  

What do you use to help reduce some anxiety while at home.