I started to make a list for this response, but then realized that there are only two of the listed symptoms that I feel are more Limey than Morgey- jaw pain and neck pain. Her account perfectly describes a time I went through 8 years before I began sprouting fibers and learned the word Morgellons. Except my story included really swoollen lymph nodes and bullseye style hives as well.
Best bet IMO would be a full Lyme panel ($475) from Igenex labs, and a $100 electric microscope from Amazon. With this observe your skin where you feel these pricks. You're obviously a smart girl, figure it out and so you can manage it and realize your potential back in school.
BTW, you're not the first poster to describe symptom onset happening just a little while after cleaning up your act with substance abuse; it's a common theme.