HI Doctor At the end of March I had a laparoscopy done to remove kidney stones from my left kidney. This was performed under general anaesthetic. After recovering from the anaesthetic , I felt a tightness in my chest and had very shallow breathing, which I ignored at that time and it did not trouble me much thereafter. On Monday , I travelled by plane and started getting the tightness in my chest again and battled to breathe. Since then I have this contstant pain and tightness in my chest. I have had a cough syrup with expectorant and bronchodilator , and also Nozer tabs to try to relieve this but it does not seem to help. Please can you assist.