Are Vomiting, Purple Fingers And Joint Pain Symptoms Of Scleroderma?

Hi, my doctor told me that I may have scleroderma. Because I vomit when I eat certain foods. My fingers just started to turn purple. One morning I woke up and my fingers looked deformed and was tingling. The joints in my fingers and one knee hurts all the time. Just recently a white circle appeared on my nose, is that another symptom?