Dyslexia testing.

I have been looking online for dyslexia tests and mainly get question forms to process a guess.
I am pretty sure I have auditory dyslexia and also mildly for symbols like numbers and letters. But I can't afford to pay for testing. Not even close..
I was wondering if there are any colleges around that might be testing or some other way I could find out for sure if I have auditory dyslexia.
I am mainly concerned with the auditory part becuase i want to know if this is one of the root issues that might cause me to tire out when socializing.

I get really tired processing conversations with people.
Like a dopamine burn out, which means after an hour or two with people who talk a lot, I am completely drained.
I'd like to be sure this isn't a dyslexia issue before I move on to other areas.
I had put this down to being an introvert and had read that introverts can be very dopamine sensitive. But I think I have a lingering feelign it's confounded more by having trouble combining audiocues with my visual thinking. Everythign I hear I convert to visuals in order to think about it.
Personality tests(Myers&Briggs) over the last 5 years or more have changed on the last twoletters, but the first two have always been I (introverted 90%+) and N (intuitive 75%+).

Anyway, I think this is a shot in the dark, after looking at the fees and process quickly.
But worth a try
Maybe I can be a guniea pig for some students

I was doing some more research after posting.
http://www.discoveringdyslexia.com/characteristics.html

This sounds an awfull lot like me, but without the traits that also seem to match atusim.
There seem to be traits mentioned there that I know are expressed in autism/aspergers etc.

One thing I did find very interesting is the symptom of being prone to ear infections..
What is the reasoning for that symptom?
I personally have my own theory on one possible cause for autism, relating to fungal or yeast issues in the gut at a young age or in the womb, causing leaky gut syndrome later, which releases waste particles into the blood and effects brain function/development and nutrition intake.
The addition of autism symptoms in the dyslexia symptoms, seems to point to a form of autism or a link.
However all my online tests seem to show me well off the autistic spectrum.