I feel tightness in my throat only in the evenings and shortness of breath and suffocation while I sit down and even while  eating my dinner.  Even after I walk for more than 15 mins outside my house I feel tightness and wheezing in my chest and throat for a few minutes but while walking and working at home i don't get tightness in my chest. After walking outside and I come home and  relax and take the inhaler and deriphyiliin, I feel relieved . I m taking a seroflo 120  inhaler once only  and deriphyiliin r 150 in the evenings to get some relief. I need proper medicine for this. Please prescribe proper medicine for my problem as I did PFT TEST, CHEST PA XRAY AND ECG AND 2D ECHO CARDIO SCAN, all my reports are normal.