Hi,Dear,Thanks for your query to HCM. Dear I read facts of your query and reviewed it in context to your query health issues. I understood your health concerns and feel Concerned about them. Based on the facts of your query the reply of your query is- You seem to suffer from Viral Bronchitis- resolving.As the pulse is normal and there is no fever-the leg swelling needs to be assessed by proper physical checks from Physician. This is a must - as you are waiting for knee operation.And before that you need to be fit with your lung condition, or else it could be postponed. Do s- Consult Physician and assess the cause of this Chest pain with recurring chest pain. Plenty of fluids / proper bland diet / Rest / Would recoup your leg swelling. Rule out any Varicose leg Veins for this leg / feet edema. Other causes of such allergic bronchitis/ sinusitis with URTI-Upper Respiratory Tract Infection, needs to be ruled out by Consulting Physician . Don t be callous to get examined with your doctor. Just don t worry and be patient and co-operate with your doctors,till you verify with your attending doctors. Need to Check with Physician , if things don t recover. -Other causes need to be verified with your Specialist doctors, as the facts may be different what you submitted. -For this Second opinion from Consulting Physician-is needed who would do proper investigation after proper physical assessment to resolve your health issues. -for early recovery-please follow above do s which would resolve your complex health issues. Hope this would help you to treat your health issues in the best way possible. Welcome for any further query in this regard. Good Day!! Dr.Savaskar M.N. Senior Surgical Specialist M.S.Genl-CVTS