HI there - its my turn - ha! I live in Canada too (Alberta) and I truly know of your frustrations in attempting to get a dx, not alone a referral. My family doctor just wrote me off as being overly anxious, and that was that. i had to prove him wrong and took me two years to do it.
I just recently read that the average doctor (GP) does not know that much about MS, and out of some 2300 doctors who were surveyed, only 17 percent of them had any working knowledge. Out of the 17 percent, only 16 percent of these knew that there was alternative treatment for MS other than steroids - so that is pretty disheartening to say the least.
I had two negative MRIs, which like you, did not serve me well. recently it has been determined that lesions may not show up in an MRI in early cases, however the damage of the MS is being done, and symptoms are present. Finally for me, when I went for a third one, the lesions did appear. As sad as it is, it was a glorious day for me, cause it determined that it was not all in my mind, that I was not only anxious, I had MS.
There was a time that they would not conclude that it was MS unless at least 9 lesions were visible, but I understand now that that has changed....thank heavens for that.
You might have to be in your GPs face, and start referring him/her to articles that are in print, ie MSDialogue.....there are articles all the time that talk about symptoms, etc...
You can find a whole lot of back issues if you visit www.msworld.com
and isnt heat just a lovely...yes i use to hop in the hot tub, and last 5 minutes, cause I just felt generally ill all over, and dizzy... I guess at one time, this was one of the ways that the professional would dx MS, stick the patient in a hot bath - ha!
Sorry for going on and on, and have a nice day