I have history of asthma.it's been inactive for a decade.lately,when i go to bed,it's hard to me to breathe & there's a whistle coming from my throat.

? Environment: Possible triggers in your bedroom like dust mites or cat dander, or even without any triggers asthma symptoms tend to flare up in the evening and during nights, especially if you have viral infection or subclinical infection. Asthma being dormant for several years can resurge, kindly see your doctor soon who may refer u to an allergist,check aaaai.org or acaai.org for an allergist,goodluck