Been using the apple watch since it's release almost daily. Recently got the new iphone so had to unpair and repair it with this phone. My issue is that the calorie count seems completely off. Just did 20min of HIIT on bike, showed only 100 calories burned - wtf? Past similar workouts showed 300+ calories. This low count is amount what you'd burn from only walking. Anyone know what could be wrong? Is this due to the re-calibration from the re-pairing?