Yes to both your questions!

Overexcitabilities - do a quick search for Dabrowski's theory and it will give you a concise summary. You may be surprised to find that your siblings and parents most likely have some of these too - each gifted person has a different number and combination of these and many adults with them have just learnt to ignore or forget them or work around them so casually that we often forget all about them until we think about it.

All three of my boys have some, esp the noise one, and two of the oldest is very sensitive in terms of emotional sensitivities.

Misunderstood is a given in giftie's life - esp in traditional schooling systems and around extended family and other family friends too.

Mom to 3 gorgeous boys: Aiden (8), Nathan (7) and Dylan (4)