I feel difficult in breathing while climbing upstairs, washing clothes etc (?????? ????????). Tested blood. All parameters are ok. No sugar and bp. No smoking. Non alcoholic. Use snuff. Taking valproic acid as per doctor's advice. Taking modlip am. Taken spirometry test. Lung average is 111 and 53.5%. I am aged 68. Male. Used to suffer from allergic bronchitis at times. No asthma. Request the reason for breathing problems and advice pl. Thank you doctor.