For some reason I am extremely unstable in almost all overhead positions. Especially overhead presses, push presses, and when I try to catch a snatch. I generally don't sway from side to side too much, but once the bar gets to a locked out position I tend to wobble forward and backwards pretty vigorously, to the point where I feel like I may end up dropping the bar. In the snatch, when I catch the bar I most commonly lose it forward but occasionally I'll be a little overzealous when turning the bar over and will lose it behind me, but unless it's a power snatch, it almost never feels stable when I catch it.
Sorry I don't have any videos at the moment, but can anyone offer any advice?