Hello, I wonder if anyone can help. I've been on HRT for about three years, but still suffering from night sweats and hot flushes during the day. Went to my GP, on Monday, had a blood test and I've received a letter today saying my oestrogen levels/general hormones are fine but IgA levels are raised (4.4 g/L) and I need to go for a chest x ray. Before I start to google this and put the fear of god into myself, why am i being sent for an x ray? I don't have a cough or cold, so as far as I know no infection in lungs. What are they looking for? Lung cancer?? Any friendly medics out there able to advise? Thanks in advance!