Concerned for my 6wk old kitten.

my kitten seems to close one eye kinda like a half wink not sure if its normal or if i should be concerned.

Sounds like a URI, a vet visit will be needed for antibiotics. Is she a rescue? Very young to be away from mum otherwise

She is 7wks old. we bought her from a lady on Craigslist and had siblings and other cats and a dog in house. 

Yes, 7 weeks is very young to be away from her mum.  Kittens mature a lot between 7 & 12 weeks and are much more able to cope with the stresses of a new home when older.

However you have her now, a vet visit is in order.  He will also give her a general check, and she should be wormed and checked for fleas as well.  You can discuss vaccinations and neutering while you are there.