They'll probably be glad you are rid of Mister Drinks-Too-Much and will be happy to welcome you home without that baggage.
Thanks, AnnieBrooke for yoru advice. Yes, or getting together with family might be good and seeing them more often than on a rushed visit. I honestly do try my best. NO, the relationships aren't toxic, thank goodness!
I think I would consider it. Even if your family didn't all leap in and provide help, there are other benefits to being close to the family. Unless, of course, the relationships are toxic.
Do explain to them about sensory processing disorder (give them something to read so you don't look like you're just making something up) so they don't get to feeling like your son is just being willful or poorly managed by you.
The reason I think you might move back is that it sounds like you could use the support for yourself that being around family makes. Not babysitting or anything like that, but just someone to call on the phone every now and then who is not long-distance.
I guess I shouldn't expect babysitting from them and I woudl not most of the time. Just in an emergency or something like that. Or here and there. I don't usually use babysitters much if I am not working. It would be nice to be there for family events and to see cousins, etc and for me to see my siblings. I don't get to go back much b/c of the cost also business of work/school, etc.
How are your parents? Are they very loving, nurturing, and would they be a very positive influence on him?
I think you need to look at this from a bigger picture than babysitting help. Some families are very warm and loving and your son would have a great support structure of a loving extended family with them, some families are snipy and petty and he would be the focus of criticism from grandparents, aunts and uncles, and not welcomed by cousins.
I think you have to look at it that way. Would he have a wonderful built - in group of loving adults and children if you moved back?