Dyslexia - what's the best sources on this and how does one approach recognising if this is an issue for them? Also, does anyone know any key points in regards to the relationship between dyslexia and bipolar?

I'm hoping to get into post graduate studies and just want to confirm if all the difficulties I have had throughout life is due to dyslexia or just bipolar in general. I want to get this info sorted before I start a class so I can get disability services working for me from the get go!