I am a 59 year old woman who has had athsma for 37 years (caused by a bad bout of flu). My athsma symptoms are well controlled with Becotide and Salbutomol, however, recently I have been getting extremely out of breath when climbing stairs etc. My last peak flow reading was 330, is this cause for concern. The reading was taken by the practice nurse and my hbp reading was good. I am also on medication for hbp and high cholesterol. I am 5 ft. tall and weigh approximately 9 st.

Can you advise.