Retirement tax questions

I recieve a pension of my 2007 divorce under 20/20/20 rule, ex-spouse military pension as direct garnishment from DFAS, & recieve a 1099R ,I've had my federal taxes withheld from it. I recieved a separate alimony for 24 mionths then it ended.  I recently moved to a state with state tax. AL.  Is my part of pension I recieve, also subject to state taxes as well? I have not been able clarify, any clear guidance, concerning this online, whether the pension I recieve is liable to state taxes as well? IWe were divorced in Texas, Im not sure if is was considered property settlement or alimony. I want to be confident II have the correct tax advice now & time to make any correction, so I might sleep soundly, instead of suffering consequences later.