my two bugies male and female are eating alot and have sevral other problems but my parantes dont think birds need to see a vet

first of all i would like to say that the date enterd for the last vet visit isnt true it wont let me choose never,
i have two english bugies a male and female and the isuess are as folows
hi i have two enlish bugie parakeets a female and male both around 7 to 8 months i adopted them at age 6 months old and probably around feburary or march, i taught my female parakeet to stand on my hand by the command of up preaty bird or up and she used to let me pet her my male though still bites me and isnt confident in me at all. i used to let my female parakeet vered have a break outside of the cage and do what she wants she usually sat down un the top of the cage, both my parakeets eat from my hand and may stand on it to get the food. but since i let them fly in the bathroom once and put them back they lost there trust to me. i get my hand close to vered to make her stand on me and then she gets used to me to tell her the comand up for a little wille but fergots when i come back the next day, and i have noticed they seem to eat alot and have become more chuby but they only eat the millet and nothing bigger or anything ells we usually have to grind the food in order for rthem to eat the rest. but i read on a site about traing birds that foods with nuts lowers there life span and has site affects like long beak growth, wet poop, and and more here is the site for more information
http://www.birdtricks.com/Parakeet/
and also these sites talks about the chemicals used in toys and food
http://www.birdtricks.com/parrot-toys.html
and http://www.birdtricks.com/store/food.html
i am just curiose what to chose for the health of my parakeets
.also my female parakeet has something on top of her right eye.
but my parents dont believe parakeets should see a vet
what should i do
thanks
sincerely,
s.
p.s sorry for how long this is.

[Aleda M Cheng, D.V.M., C.V.A]

Birds do take a lot of work, but it should be a pleasant experience.  I suggest that you continue with your research.  I have listed a number of web sites that should help.  Avian behavior is extremely complex, and takes consistency, and patience.  It sounds as if you have only had them for a month, so be patient, in six months you should see a difference.

Please view the articles in the following websites and buy the books if you can.  I recommend them:

http://www3.upatsix.com/liz/
http://www.seavs.com/case_studies/birds/behavior.asp

This website is the Association of Avian Veterinarians and also has good articles and brochures that contain valuable information: http://www.aav.org/

The following websites list good diets:
http://www.avianweb.com/parakeetdiets.htm
http://www.budgieplace.com/advanced.html