Yes.

https://familydoctor.org/condition/sensory-processing-disorder-spd/

> Doctors don’t know what causes SPD. They’re exploring a genetic link, which means it could run in families. Some doctors believe there could be a link between autism and SPD. This could mean that adults who have autism could be more likely to have children who have SPD. But it’s important to note that most people who have SPD don’t have autism.

SPD is also in DSM-V, so insurance will cover treatment:
https://autismawarenesscentre.com/the-dsm-v-and-sensory-processing-disorder/

> So why have SPD in the DSM V? If SPD is recognized as a disorder, it may mean insurers cover the therapy. Therapy provided by an occupational therapist and/or physiotherapist is costly. Sometimes special aids are needed like noise blocking headphones and the cost of such items may be covered. If listed in the DSM V, scientists may conduct research into SPD’s causes and treatments. The Food and Drug Administration may approve medications that can be marketed for it.

I personally didn't bother getting a formal diagnosis because it's like tinnitus. What are they going to do? It's a problem with the brain. Tinnitus has no cure. Depression has drugs that work because it has neurotransmitters.