@angell84 I'm so sorry, I hope you get the medical help you need, you'll need to push hard for it. And I hope you get well soon. 

I've been unwell, too, I had a temperature and a really bad cough for 2 weeks, then last weekend I developed breathing difficulties because my throat was blocked by mucus that I couldn't cough up or puke, and on Saturday evening I had no strength left, and lay on the bed breathing very short breaths and feeling like I was running out of oxygen. My DH was speaking to paramedics, he thought I was asleep at that point. I couldn't tell him that I was awake but unable to cough or puke and I felt I had no strength left.
No ambulance came, because they thought I was asleep. I eventually found the strength to start coughing and I got through by continuing to breathe short breaths until decongestants enabled me to puke up the mucus.
I'm 50, with 2 adopted DDs of 10 and 7, who were scared to death, as was my DH and my family. And I wasn't even one of the more serious cases, as I was young enough to find the strength to cough and puke up the mucus that was blocking up my airways, so I didn't need hospital care.
This is scary! I've got Chronic Fatigue Syndrome and PTSD following childhood abuse, and I had pneumonia last year. But I was never feeling like I wasn't able to breathe before or about to lose consciousness.