Not to the extent of the arm injury, but I do have alters that feel our EDS symptoms more intensely, who are more prone to fainting spells, and who have more frequent dislocations/subluxations. I also have alters who are pain managers, and I adore how they help us ge through the day. One of them went into hiding earlier this year, so maybe if I praise her in this response she'll think about coming back lol

We have alters who can handle specific symptoms better than others mostly but some like how you describe as well. Our little and Scar use a wheelchair on occasion cuz of chronic fatigue and/pain which are both things the body experience. They almost have a worse version of it due to being formed from that trauma.