I need help with chronic severe asthma.?

I have suffered with asthma for the past four years, since I was 17. Over the past few month my asthma has drastically increased becoming a chronic and undetermined problem. I have been tested for all know north american allergies just a few years ago and was completely allergen free, there is nothing in particular that I can find that is causing my asthma to worsen. I have been sent to the emergency room for asthma attacks five times in the past four months. I hate hospitals, and I hate going to the ER over and over again, getting the same treatment and it not working. My most recent attack I was hospitalized for two days, they gave me nebulizer breathing treatments every 2 to 4 hours, the oxygen/albuterol/advair combo helped breifly but within a few minutes after the treatment my breathing/ wheezing was back to where it was. Currently I'm unable to get out of bed or out of a sitting position even just to walk a few feet without my chest tightening, getting extreme shortness of breath, and literally having to sit down or lean up against something for several minutes just to "catch my breath". Also stress is a factor, anytime I hear people yelling, or becoming stressed out, I get this uncontrollable panic which also trigger's my asthma. I'm currently at home, taking my 50mg of prednisone as prescribed, I have an albuterol (pro air) inhaler, which does not seeem to work at all, it seems to have little or no effect on my shortness of breath and wheezing. The wheezing is terrible and constant, it is so loud it sounds like screaming in my lungs when I am sleeping especially it becomes so loud it wakes me up. It is painful, I'm constantly coughing, usually a dry cough not bringing anything up, causing more soreness and pain in the muscles around my lungs and stomach, I just want to feel better and normal, this is no way for a non smoking female in her early 20s to live, I just want to know of any home rememedies or anything that could be causing this to worsen that Im not aware of, not being able to breathe properly is scary, not to mention it is completely interfering with my life not even being able to get out of bed, even though I know Im not sick because I just got out of te hospital and I was cleared for pnemonia and bronchitis or any other cold or flu that could be causing the breathing malfunction or worsening it. even talking is a chore in itself. I have to have constant attention to make sure I dont get up to get anything and get whisked into a suddden attack. I need HELP. Please! From someone who really knows what they're talking about, like an asthma specialist or an herbist who is skilled in home remedies for respiratory issues. Just knowing II could get an attack at anytime and be brain dead in 5 minutes is horrifying and Im constantly struggling to breathe as is, I feel like I'm 90 years old, I just want to feel normal again. Please, Im begging someone who has information that can REALLY help me to come forward with their information. God bless you and please find it in your heart to pray for me in hopes I can overcome this hurdle in life.