None of us here could diagnose you, of course. All we can really do is encourage you to go back to the doctor with your symptoms. Try to write them down in some sort of logical order, and note when they happen, if there is any connection with heat and humidity, for example. If your mother is seeing a neuro, he would be a good starting point for you, too.
Yes, there is a genetic component to MS, and to lots of other autoimmune diseases, so it is possible there is a connection there..another good reason to see your mother's doctor.
And also yes, if you are a nursing student taking care of people in a nursing home or similar setting, you're seeing the "worst of the worst". Many of us with MS have lived long lives -- I've had it for at least 24 years. While I use a wheelchair, I live in my own home, cook for myself and my husband and 4 cats, bathe myself, toilet myself (no catheter, just normal peeing), feed myself, etc. So while having MS certainly is no cake-walk, it isn't a gloom-and-doom diagnosis either, certainly not all the time.
But first you have to be tested to find out what is going on with you.
...I am not a doctor, nor health professional, and don't pretend to be one, here.....