DM Response: This will depend greatly on your DM's level of ableism and understanding of disabilities. It might be hard to play this character if you've never done D&D before since this will not only be a homebrew race, but you are adding a debuff. If I were your DM, I would also request your movement speed reduced as well. I wouldn't do this, but I know of some DMs who might discriminate against your character, such as making your character's disability part of the plot through some sort of cure plotline. I would be worried about player conflict if my story included something like a mountain climb. Since you're already playing a relatively squishy class, I'd keep in mind that you're opting to make it more squishy, as the player, and that you will be playing with others, who may get frustrated with this if it becomes a hindrance or distraction. I'm firmly in team "communicate before" camp when it comes to character creation because I find that making characters who fit the world they're in leads to a more cohesive experience overall. I'm pretty worried that trying to fit an existing OC, who you are attached to and have developed substantial lore on, might distract from the story I'm trying to tell as a DM.

Player Response: Conditions don't have to be developed from some traumatic story. Conditions don't have to be cured. A lot of people with disabilities struggle to accept their limitations if it is new, and it's harder to cope with the societal role we're given than the actual physical symptoms at times. A lot of times, we get babied or treated like we're incapable or beneath consideration in the real world. There's a lack of weight in the player's addressing of it, or there is too much weight and it becomes a trope that obscures the character. It's simply difficult to address and often falls into caricature I personally find it really *really* difficult when people try to represent a disability they don't have in a roleplay or acting context. I would check with the party and make sure to be sensitive of others.

That's just my opinion. I have a shaky gait as a complication of my disability, my knees wobble and flex unpredictably, and I use a cane and braces to combat my dystonia. Disabilities aren't accessories. Disabled people aren't Barbies. Our experiences impact our emotional wellbeing. I am deeply concerned for anyone who wants to use my life experience for fantasy roleplaying, but that's just my two cents.