My college sophomore hasn’t been sick this year, but first semester of last year was awful! He got Covid for the first time about two weeks into freshman year, and tested positive for the flu at the same time!
He recovered, then came home about 2-3 weeks later for fall break. He was coughing nonstop to the point it woke me up in the middle of the night just hours before he was supposed to fly back to school. I decided I couldn’t send him back without seeing a doctor and turned out he had bronchitis.
But it doesn’t end there. When he came home about six weeks later, he wasn’t feeling well again. Took him to the doctor again, and this time he tested positive for a different strain of the flu! So he had both strains of the flu, Covid and bronchitis in two months.
I chalked it up to the fact that he had spent the previous two years mostly at home, or at least in a mask when he was at school/work. And suddenly he was living in a dorm with hundreds of kids, no longer wearing a mask, very busy with academics and a club sport, not eating as well as at home or getting as much sleep, etc.
I also have a college senior and though he fortunately has mostly been healthy so far this year - he did have a cold (neg for Covid) that lingered for a while but thankfully nothing else so far.
I hope your daughter is feeling better soon. I think it’s so hard to get the rest needed to recover from an illness while a college student - can’t miss class, etc.