First your Doctor is irresponsible for his actions. Xanax withdrawal is very dangerous and can from long term use lead to the very things you described. I don't want to freak you out but I think honesty is the best for you rather than blow smoke up your butt, but it can take years for the effects to go away from long term abuse or even just long term proper dosage. Grand mal seizures are one symptom, blurred vision, headaches, seeing trails, severe panic attacks. The list is terrifying and I lived with someone who took 2 1 mg doses a day for years, ran out and the withdrawals started immediately. She orders hers from overseas and gets them delivered to the US now. Still only takes 1 mg a day and has done this without problem for years. Doctors can prescribe 0.25, 0.5, 1 and 2mg doses that can be used to wean someone off supervised. I would continue to search using harm reduction centres as a source to find addiction friendly doctors. There should be, but may not be, a doctor who gets it and may have you come in daily to receive a dosage as they do with heroin addicts using methadone. These drugs are supposed to be used short term, and depending on how long your doctor prescribed it he sounds somewhat culpable for letting it go on so long without weaning. I would keep searching but I don't know how it is in the US, and State to State harm reduction may be looked upon either favourably or not. If you were super rich I have no doubt there would be a lot of doctors who would come to your home and help you, the 99% are simply on their own. Doctors training in addiction is less than a days training up until recently and unfortunately with the stigma of addiction it's a problem. Try Psychiatrists, keep pushing and if you have someone like a spouse that is around when it happens have them film it as they call 911 to show the reality to a doctor. I know there are sympathetic ones out there, perhaps that lost someone to addiction but you have to just keep pushing. I wish you the best, if you want to talk to my wife about it she is willing.