There is one thing that might be really helpful for you to do -- learn about what kinds of symptoms are "typical" for MS (blurred vision is one of them), and learn about ways to talk about that, that will be clearer for the doctor. They don't have a lot of time for patients these days: the typical doctor appointment is about 20 minutes, even when there is something really serious going on!...so talking about "zip lock bag eyes" won't make much sense to them in a quick listen, and they'll dismiss your concerns as "not important".
Talk about "double vision, peripheral vision seems blurred, even doubled."
Talk about "extreme fatigue, exacerbated by the problem that I don't sleep well, only 3-4 hours at a time".
Talk about "I see a therapist, and am on this med; could that be contributing to my sleep problems?"
And note that steroids, both the infusions and the oral steroids, can cause sleep disturbances, emotional problems, depression, anger -- all the emotional stuff you're dealing with, on top of having to come to terms with the fact that you have MS, which you've been able to deny until now.
Gretchen has offered you a lot of emotional support -- stuff I'm not able to do real well. I've just learned to deal with the garbage this disorder can bring, and move on with life. I deal with most awful things in life the same way: stuff happens, and it happened to me, and so I move on. But I acknowledge that doesn't work well for nearly anyone else.
Hang in there. But learn ALL you can about MS...start with the National MS site, at www.nmss.org and come to understand the "typical" and "usual" sorts of symptoms are (many of which you're dealing with), what kinds of meds may help..or not help...and where to go from there.
Next time you see your doctor (or when you find a new doctor), do ask this, too: "who can I call here to ask questions?" Sometimes the doctor will want you to call him directly; most often they'll have a designated nurse or nurse-practioner who you should call when you have questions. Once you know that, and know that there will be someone at the other end of the phone who can be helpful, you might feel more confident, too.
...I am not a doctor, nor health professional, and don't pretend to be one, here.....