Hi, I've been experiencing chest tightness for over a month. It is not constant, but periodic. I've been to my GP who listened to my chest and found no wheezing. She prescribed Advair 2x/day for a month and had me see her after 2 weeks of use. She said my lungs were clear but to finish the month on Advair so that we can 'stabalize" the tightness. I am in my 3rd week now and am currently experiencing the Same degree of tightness that caused me to go to her 3 weeks ago. The only things i've changed with my lifestyle in the past couple of months is going on the Pill for the first time in my life (starting in Feb.). I am now 35. And i've added daily fish oil capsules as a dietary supplement. Can any of these cause intermittent chest tightness or could it be more serious, like asthma, lung disease or even Cancer? (I have never smoked in my life but my father smoked in the house when i was growing up.)