Not weird. I’m also 55, a woman, diagnosed at 40. Pretty sure the only 2 friends I really kept in touch over the years with, have ADHD.
I think that is pretty normal. They are the only ones able to relate to us and put up with our quirks! 😉
My kids are now young adults and are diagnosed with a mix of ADHD and autism.
I was told by a Doc that ADHD has been found to be highly highly heritable. So, your kids having it is not unusual either. You are not alone!
Take care | Annette @itzaspec