hey hang in there i can completely relate to a lot of things you just said especially the part about being hypersensitive to sound my brand of adhd usually makes me hypersensitive to sounds and touch and it usually switches into high gear when i forget to hydrate or have no energy in my body but im still pushing myself on low battery mode instead of just resting ive found that meds have helped me with that and also a lot of basic things like introducing myself to things in small installments for eg if i just cant bring myself to shower because of the texture and the hypersensitivity i slowly introduce myself to flowing water in the sink and then acclimate my body before jumping in the shower