Laura, A high SED rate could be from an infection somewhere in the body. As a sign, like fever is a sign of disease, but not a disease in itself or a marker of a Type.

A sinus infection, UTI, etc., could make the SED rate increase. I had 78 one time years ago. The 20's is common. 7 over the high is not outrageous. It does vary from day to day, lab to lab. But call and ask.

I don't think it means a MS disease type, IMO.

It can be very high with Lupus, Arthritis, RA, and some other autoimmune diseases. Some meds can raise it too.

If your doctor is not concerned, then he knows the reason. If you are concerned, call and ask why your SED rate is higher than the normal range. It could be lower like 5 or 6 most times, so maybe something is going on in your body.