Firebomb34

For context, for the past 2 to 3 months now whenever i play on SL. When ever i fall off or barely step off a ledge or stairs. My avatar for whatever reason would slowly descend down while flaring their arms and legs. Until landing down on the ground. Another thing on top of this is my ability to jump or fly doesn't quite work most of the time either. Has anyone else ran across this issue before and know how to fix it?