Have your Vit D measured. Also B12 at the same time.

At 19 you may be low in Vit D considering where you live.

Fixing that and getting serum levels up to 50-60 ng/ml, might help.

If you play video games, ? do musical instruments like guitars?
or sit at lectures with your elbows on the tables? you could have stress or compression issues.

Do you use MJ? it can be contaminated with pesticides which affect your nerves. Do you eat MSG foods, from dorms or restaurants? It can cause nerve symptoms.

Do you play sports? stress the nerves in other ways?

There are many many questions. Did you get vaccines this fall...both flu vaccines? These may induce autoimmune problems.

You may be intolerant of gluten, which may cross the GI tract and get into the blood before digestion is complete, and cause neuropathies that way.

Many many things! So tell us more... so we can help you be the detective you need to be to feel better!