You could always get yourself tested privately, Its about £150.00 here in England but at the end of the day if you get to the bottom of the problem it will be worth it.
Are you at a college or school where they can refer you to a specialist and help with the financial side.
My college sent me to a specialist, it took about 1 1/2 hours and i had to resd aloud, solve puzzles (which i was appauling at!) add up, times, takeaway and divide and see the difference between two pictures at a quick glance, i also had to explain a story which was read to me.
It wasnt difficult and it didnt hurt, it was enjoyable having to try and do something that you hadnt done before. My results wernt bad but they wernt good either, hence why i got the support i needed.
Keep me posted