Save your money and listen to your husband.
When you have balance issues and you are working in an operating room, the tendency for liability to increase for your employer increases. Could you do the same job seated and more safely? Can you do a horizontal transfer to a job that has less liability?
ADA requires reasonable accommodations to be made. In my case, my doctor ruled against working around any equipment due to liability as well as my own safety.
As to people offering sympathy and other avoiding you, this is normal. Even within the confines of a medical facility where you would think people would understand- some do and others never will. MS- is it contagious? if I get involved what will happen?......there is a whirlwind of questions and the response is what you have experienced firsthand. When I worsened, the fair weather friend fled, but the true friends remained. Consider yourself blessed to learn those who care. Count your blessings where you can get them.
Lastly, your husband is thinking like most males- emotionally detached. Do not let your emotions overcome your situation. If you seek out professional opinions, those opinions will be objective, just as your husband told you. If you listen to your husband's advice, at least you will not be out the money and he can not say "I told you so"!!