Should I pursue a treatment course?

I have a darling 5 year son. He has always been what we have called "very sensitive." He was colicky as a baby, woke up crying for years (he still wakes up grumpy), and would start crying over just tiny things. And up until recently, a tiny little cut could result in a couple of hours of crying. It's hard to tell if he is ever really hurt because he cries like it's the end of the world over any "boo-boo."

In addition, every time the seasons change he just struggles over wearing different types of clothing. He can't stand the feel of pants on his legs after summer, and the feel of exposed legs just drive him crazy at the beginning of the summer after being used to pants. I could go on about clothing issues...but he also loves being tucked into a "big-boy burrito", as I like to call it, in bed. I was just joking with him about him being 8 months old and huge, and still loving to be swaddled like a baby. I also have just struggled with getting the child to sit still. He is constantly wiggling, running into things, falling out of the chair at dinner, etc...

Now I talked to my Dr. about the clothing thing a few years ago, and he said he may have a mild form of SPD, but that since he was so high functioning that it wasn't really impacting his life and may even be just the way that he is. My concern is that I am going to be homeschooling him and his sisters in the fall, and I'm wondering if I need to look into having him evaluated-if this is an issue if there are accommodations I need to be making as his teacher? He actually has very good muscle tone and is very good fine motor skills (very athletic), so I think that part is fine. He is very interactive with those he knows and can carry on a very intelligent conversation and is quite bright for his age.

Does anyone have a suggestions for me? Does this sound like something I need to pursue? Thanks for any input.