I was diagnosed with adult allergic asthma one year ago at 38 yea...

I was diagnosed with adult allergic asthma one year ago at 38 years old. I started having problems breathing ONLY AT NIGHT on occasion and palpitations. Had a physical and ekg, totally normal. Went to allergist and they said I have alot of allergies and diagnosed me with the asthma. Funny thing, weeks before I niked 20 miles, hiked 12 miles, canoed 3 miles, played golf in a 3 day span and no problems. Since they told me this and started me on advair I haven't been able to jog more than 2 miles or bike more than 8 to 10. Its very strange indeed, I have gotten more paranoid feelings when just get a little out of breath, and sometimes cant keep still in a car or sitting down. I cut back on sugar, sodium and started exercising a little every day, only 15 minutes. But came down with a cold recently and back to square one. I am trying to take the advair only ONCE a day instead of twice and almost feel withdrawal symptoms like shakiness, paranoia, irritability. Does anyone have any idea about this? I am really confused! Thanks... J