It depends on how badly you want this.
Nurses with all kinds of disabilities are employed everywhere. I'm an asthmatic with a bad knee and back; a nurse I went to school with was a type I diabetic on an insulin pump; and I know nurses who are deaf, partially blind, missing a limb, recovering from addiction, suffering from multiple sclerosis......you name it.
While I wouldn't recommend a physically stressful job like Med/Surg or orthopedics to someone with your health issues, I'd hate to see you give up on nursing if it's your dream. You may need some accomodations made for you while you're in school; if so, ask for them. Don't allow anyone else to dictate to you what you can and cannot handle; it's your body, and only you know how you feel.
Frankly, I think nurses with health problems are some of the best, as we can empathize with our patients........after all, we know what pain and suffering are.
I wish you the best.