A key factor is whether your ex gets SSDI or Title 2 disability or Supplemental Security or Title 16 disability money. The rules are different for each and Title 16 is hard to tap. You may need to pay an attorney to help you, but first call SSA 1-800-772-1213 and ask them why! Good luck.See question
There are several good answers here. Directly, however, height will never matter in obtaining disability until you turn 50 years old. Then it MAY be a factor or not. Until then if you can do the easiest job in the world full or part time enough to make $ 1090 a month you will not qualify for disability. You must be unable to make $ 1090 a month for 12 months straight too. The only exception is if you contract an illness where you are expected to die within 12 months. ( You don't have to die, a doctor just has to think you will).
SSA has the second toughest standard in developed countries. Only S. Korea is tougher. That's why 80% of applicants get a lawyer eventually. With respect to a fine colleague here, I do take cases at the application stage and help people do it right the first time. It is more work for the lawyer, but it helps more people win because innocent mistakes and misunderstandings of what is being asked, is not used against them in a hearing.See question