Hi there, and welcome to the site.

I would say it certainly sounds like you have quite a few hypersensitivities, and I'd say they're most likely significant enough to assume you have SPD. I can certainly relate to all of that, plus the motor/coordination issues you mentioned.

I like your idea of talking to your psychiatrist and therapist about it. The therapist that is recommended by far the most for SPD is an occupational therapist, as I'm sure you may have seen mentioned other places. It can be difficult to find one that is willing and able to work with an adult, and yet another challenge to find one that is able to work with insurance. I get a 50% return on mine, and that's better than what some people get.

As for the family thing, well, it has been found that a lot of people with SPD have at least one parent with the disorder. It tends to run in families, or so it would seem, so it's quite likely that others in your family do in fact have it, even if it's not as severe.

I hope you are able to get the best support therapeutically as you can. Likewise, it can be beneficial to be active on a site like this and interact with others who have been through a lot of similar experiences.
Best wishes, and I hope you get what you need out of this site.