Jordan-
Sounds like stress to me, too. I was under any enormous amount of stress as a young woman and had the numbness thing going on too and it turned out to be anxiety attacks. The hair and your periods can be from stress, but it could also be from HYPERthyroidism, which I have. My periods went wacko and my hair started to fall out, gradually getting worse. I also lost a lot of weight. That happens because your thyroid controls your metabolism. HYPERthyroidsim is when your thyroid OVER functions and sends out too my thyroid hormone. HYPOthyroidism is when it under functions, sending out too little thyroid hormone. The symptoms of HYPO are the opposite of HYPER, your period gets heavier, you gain wait, and hair usually thickens.
Hair loss is not a symptom of cancer. I know cause there's been a lot of it in my family. The hair loss is only from the chemotherapy.

Whatever the problem, take care of yourself!!!

Let us know what the dr. says.