High rate of sedimentation and fast hair loss at 18 years old?

I suggest seeing a hair loss expert now to go over your blood test results and provide you information about your best treatment options. There are great non-invasive options like prp/progesterone and/or hair transplantation. See an expert. Best, Dr. Emer

Your
high sed rate may be caused by a medical illness and that illness may or may
not in turn be causing your hair loss.  Hair
loss could be only one of the signs of another systemic medical condition. Nevertheless,
without a proper medical history, physical exam and a microscopic evaluation of
your hair and scalp it is virtually impossible to give you a diagnosis.  Please consult with your family doctor for a
complete checkup.

It's possible that a health condition can cause hair loss, but not an elevate sed rate in and of itself. I would recommend further evaluation by medical provider.