Tired of breathing like this: Rapid breathing and shortness of breath

I've been breathing rapidly with shortness of breath and cough for over two months I've tried asthma medication I've tried cough drops I've tried cough pills I know that the rapid breathing and shortness of breath is from low potassium but since I'm getting false normal potassium labs I will not be able to get my breathing fixed and once I get the runs go to emergency for low potassium and get my breathing fixed I go back home and then I'm told to continue the asthma medication and the antiacid which could be depleting my potassium and as soon as I start taking them again the breathing problems return and I'm wondering if I'm just supposed to go around like this for the rest of my life