Hello, my name is William I train service dogs in the state of Colorado for free.
Now with the introduction out of the way. Bad news is ,as long as it is described by a doctor as a life limiting disability that is permanent(or to the effect of those words) then you qualify for the use of a service dog under the Americans with Disabilities Act. Basically if you qualify for Social Security Disability or Service Connected Disability then you are 100% qualified for a service dog.
From what you have entered into this forum (here comes the good news) you will be looking into mobility assistance tasks and alert and response tasks which are easier to train then some of the other tasks and could be done by you (this requires a lot of time and patients on your part. It takes me anywhere from 2 weeks to almost 2 months time train per task depending on the complication of steps for the task. Its still easier than potty training). Not every dog can become a service dog. My wash out rate is about 1 out of 8 pups will prequalify then 1 out of 15 will have the personality and drive to do all tasks it is assigned to do accurately. Bottom line is it takes a special dog to be a good service dog.
Tasks could include but are not limited to:
Stabilizing partner during dizzy spells until they pass (requires large breed to do this).
Hitting a dog alert button to speed dial your choice of contact 911 or family to respond to a black out or fall emergency when this happens at home.
The dog getting help by approaching a stranger or a friend in a public setting and having them open its side pouch with care information and contact info for your care.
Reminding you of time to take medications and to fetch a bottle of water to take your meds with.
Providing tactile stimulation by licking you to bring you out of a daze.
These are but a few tasks you can train your service dog to do. There are some organizations such as Paws with a Cause ( https://www.pawswithacause.org
) that do this for free, but they usually have 3+ year waiting lists.
It seems your dizziness, blurred vision, lose of consciousness, do limit your life in some ways but it will still take a doctor to seal the deal on life altering permanent disabilities documentation that any service dog organization and ADA require.
Pm me if you need any help.
Oh and Gabby, I remember seeing the 3 tasks also, but I just went over newest ADA revisions and laws. I never saw it. It may have been in pre 2010 ADA. An allergy alert dog usually only has 1-2 tasks. Identifying if allergen is present and carrying an Epipen and getting help incase partner is unable to administer to his/her self.