Too many unknowns. For example: is this workers compensation or personal injury; where, when, how did this occur; what do the doctors say; what is you history. You should discuss this with your attorney. Goodl uck.
If there is a court order regarding the withdrawal it will contain a time frame, if not then you have until your statute of limitations would expire. You may contact the insurance carrier, but if you are going to get a new attorney - and you almost always should - then don't. Good luck.