I have been diagnosed with Chronic venous insufficiency. I have been prescribed furosomide (water tablets) and compression stockings. Every time I eat a meal at lunchtime consisting of carbohydrate I feel very ill and drowsy. I also get it in hot weather. I get it during stressfull periods ie dentists. My doctor has told me to elevate my legs after every meal, sometimes I invert them up a wall, this helps quite significantly. Doctors do not seem to be investigating my condition at all and put it all down to obesity, but I live on a low GI diet. I cannot stand for long, cannot walk, sit or carry on with a quality of life that I once had. Once when I had surgery the surgeon said my blood pressure dropped quite a lot. I am wondering if this is what is happening to me now. My mothers family all had Chronic venous insufficiency too. Can anyone offer any advice for making doctors listen please.