If I am permanently disabled and have had surgeries, to cut it short - ALOT of medical maintenance and pain management, does your PD ever increase in?

If you are reciving biweekly compensation for permanet total disability, then the answer is "no." If you have previously received an award for permanent partial disability, then your can submit an application with appropriate medical proof to increase the percentage previously awarded.  If an increase is awarded, then you would be paid based upon the increase only.  For example, if the prior award was 6% and then was increased to 10%, then the payment would be the value of the additional 4%.