Hi DN,
I don't mean to frighten you but I do recall that certain illnesses strike teens when they enter college. schizophrania being the main one.
I would recommend that she see a doctor for an evaluation so that her problems don't escalate.
I can recall very well after losing my job for a period of seven months and in that course of time, I became afraid to go to the super market and it became worst for me to be around people and then it turned worst for me panic wise to have to find a job. my mind kept making it worst and worst before I finally sought help for it.
I was put on an anxiety medication and I had therapy with a wonderful person I matched up with. we had a good repore which is very important.
I think maybe your daughter needs to talk about things so she doens't keep it bottled up inside.
holding things in can only make a person sick and really begin to effect the person physically. which you can see it's effecting her already.
It's not uncommon for young adults go thru a major change in their lives when they enter college. there's a whole set of new demans on them. they don't necesssiarly feel ready to be considered an adult in their minds. we as the parents may expect them to behave a certain way when really they aren't ready to just switch into this mode.
putting expectations on them can sometimes make them feel pressured.
they have to learn how to adapt to changes now and have to learn to grow into an adult.
we're there to guide them, but they are their own person.
I wish her the best and that she seeks counseling before it gets worst.
good luck
L