If your peak flow is normal and you have no wheezing, my guess would be that it's anxiety related. How long do these episodes last and do you panic when you feel like this? I don't have asthma but I do have anxiety so sometimes I get the tightness in my chest, shortness of breath and I can't take a deep breath in either. Normally if I sit down, relax the feeling subsides. Are you on any anxiety medication? What about asthma meds?
~Uc(Left-sided) since 1992 - Meds - Colazal, 6MP, Biotin, Forvia, Canasa every other day for maintanence~Secondary Raynauds Syndrome since 2004-Meds Norvasc Fibromyalgia since 2006, Acid Reflux - Prilosec OTC~
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@--->--Co-mod for Ulcerative Colitis...Moderator for Allergies/Asthma--<---@