Vectra C 06 LS. MOT last week and sailed it apart from a rear tyre change. Since then the car has felt a bit bouncy to drive, even on decent roads driving alone, feels like driving in a light wind moving side to side. Checked tyre pressures and all ok. Just wondering if a suspension check would be worth it or is there something specific to target first to sort. Also think I feel a slight understeer or that may just be me adjustign to the side to side movement. Any advice would be greatly appreciated.