Near-death experience, severe asthma attack, how to get help in an emergency without breathing?

Good evening, I had a severe asthma attack yesterday, even though I usually only have mild asthma. I woke up because I suddenly couldn't breathe anymore, so I tried to get oxygen through my mouth. But that didn't work because my windpipe or something was completely blocked. Luckily, my girlfriend woke me up because I…