hi, thank-you for providing the brief history of you. As a thorough assessment of the chest and also the Musculoskeletal assessment is advised. Since you been on medication, first to understand that medicine works on a symptomatic relief. Post the medicine the body has to recover on its own aa the body is a self medicine for healing. Also, since your symptoms are not coming down and you landed into the back ache as well I will have something for you which is non invasive and no side effects. I will recommend you to perform regular steam inhalation and also breathing exercises. by which the mucous in the lungs will be loosen by steam inhalation and by performing breathing exercises your lungs will improve in its manner of having good lung capacity. Also, looks here that you have a severe respiratory muscle weakness which is not allowing you to have deep inhalation and shortness of breath is persisting. you have not mentioned your age so it will difficult to suspect anything. but on the basis of your symptoms these therapy will surely work I have a confident with my clinical experience. Try doing steam inhalation or a nebulization - this will help loosen the secretion and allow the lungs to expectorate it. Breathing exercises - this will help imporve the capacity of lungs, strengthen the muscles of respiration, and allow the healing to occur. the types of breathing exercises includes - * deep breathing exercises * abdominal breathing exercises * pursed lip breathing exercises * costal breathing exercises * diaphragmatic breathing exercises * coughing & huffing. all of these exercises you can learn from a physical therapist who specializes in Pulmonary rehabilitation. As these all exercise have their own benefits to improve the lungs and muscles of respiration. You can check on the net. The effect of breathing exercises are always present in the research articles and also in my clinical practice. Perform regular general body exercises which will help improve the metabolism and immune system too. Since you been taking too much medicine, due to gastritis you facing ache in the pelvic region. For which exercise will help you get rid of it as well. Also to understand that oxygen is the fuel of the human body. Any disruption in the fuel supply can lead to aches, pain, infection ,etc. In my clinical experience I have seen patients with severe breathing issues and by the help of breathing exercises and general body conditioning I have almost been able to maintian the optimum results for the patients by controlled symptoms. Also, yoga, meditation will be of an advantage to do along with medicine. With the grace of God I wish this non invase therapy will work on you. Regards Jay Indravadan Patel