Continued SOB; PFT shows restrictive process?

Hi:

30 yr old Asian Male, 5'10'', otherwise healthy, diagnosed with childhood asthma. Asthma returned in 2/2006. Treated with Asmanex and albuterol. Since 2006, asthma flares-up during change of seasons (October through March). Asmanex daily and albuterol as needed during flare-ups. History of Asmanex usage as follows: (2006 - 2 months; 2007; 3 months; 2008 - 5 months; 2009 - 7 months). The last two years I experienced chest tightness/breathlessness within a week after going off the asmanex. Since stopping the Asmanex in 5/2009, I have continued chest tightness/breathlessness that manifests 2-3 times a week for 3 hours or more. Since 5/2009, my PEF is usually between 600-650 with FEV1 between 3.20-3.50. At time, I also experience "crackling" of my neck/shoulder bones upon a full inspiration. When I was on the Asmanex, I almost felt like someone was breathing for me. Now, I have to constantly monitor my breath to make sure that I do not experience SOB. I also experience SOB under stress, in anticipation of a confrontation or with lack of sleep. I have never experienced this length of these symptoms before.

I have three questions. First, what explains the symptoms I exhibit now, which I have never exhibited before? Could it be linked to the use of the Asmanex and/or adrenal suppression?

Second, any comment on this article relating to dsypnea and restrictive processes given my SOB under stress?
http://ajrccm.atsjournals.org/cgi/content/full/165/9/1260

Three, does my PFT show any restrictive process? First value is pre-bronchodilator. Second value is post.

FVC      87/86
FEV1    86/88
FEV1/FVC  100/103
FEV25-75   68/74
PEF          109/113
FIV1/FIVC   73/80
FIVC           83/83
MVV           44
TLC             87
VC              87
RV              84
RV/TLC       93
FRC            82
ERV            69
IC               90
VE             277
DLC0         105
Dl Adj         105
DLCO/VA    120
VA              85
(although not posted, my resistance values were between 94% and 104%)

Thank you for your time.

[ChitChatNine]

Hi and welcome.  I am not familiar with interpreting the #'s you display.  And, a few of our members who may be able to give assistance are on vacation or out ill.

You may want to post on our respiratory disorders expert forum where a physician  from Nat'l Jewish will be able to better answer your ? .... others may stop by, but this is a thought.

http://www.medhelp.org/forums/Respiratory-Disorders/show/61

C~