Anti social

I don't think anything is wrong with you. What really matters is what are you like with people
when you do meet them? If you are polite and caring then don't let it bother you.
When I come home from work and I'm tired, the last thing I want to do is go out again drinking
or socialising, I would rather stay at home and watch tv, indulge in a hobby or chat to family.

I guess either you are too modest or its your low self esteem, that allows you call with such name. We all have something unique in ourselves, that makes us something special. Only the someone special that is made for you can see and appreciate.

Probably you have not met enough of like minded people of your kind. Once you will find those kind people you will be very much social. All the best to you...