I keep weighing out under my dryweight. We have new machines (Althins). We've tried using .2 and .4 and i still come out under. I feel very bad anytime I come out under. I can not even function and get awful aches in my legs. If I come out on target or .1 over, I feel a world of difference better. Is there any way to prevent myself from going under my dry weight?

Ask that you be able to weigh before pulling your needles. Then they can give you saline to bring you up to dry before you leave. We often use no rinse back calculation for patients like you, and weigh them to make sure they are OK before leaving. Our patients report that it helps.