My FIL recently had CX stent approx. 7 weeks, his BPPV has increased significantly. He had MVR approx. 4 years ago, and thats when the BPPV took hold. Is this a typical Post op complication which will settle? He can do a few things in the yard but then almost falls over. Nil c/p currently. During stent he was sedated due to BP in boots, fyi. Thanks P.