I am 35 years old and suffering from diabetes and I am taking insulin and my weight is 85 kg .my problem is I am having fever chills fatigue sinus problem and pain behind my neck and feet. I have taken xray and blood test and in that lymphocyte is showing 46 percent and fever chills and sinus problem is not going and I have taken medicine like xykaa1000, hicetax and gembast320 and now I am taking doxolin400 and lorfastmt at night and I am not getting relief. I am feeling pain behind my chest and there is cough and the colour is white and I have pain in my sinus area and no appetite and while walking I am feeling pain in ankle and feet. Little difficulty in breathing is there and pain come and goes from chest side and back. Pls suggest what the cause.