Hi venom. Hi agree, this seems related to anxiety. Since it happens since a month, maybe it could be at least partially due to the stress to begin university...also if you like the field that you choose, probably there is some anxiety, expecially if you are an anxious person in general (I am too).
I'd suggest you to work with a psychologist and discuss about anxiety and about this problem in particular. Maybe also breathing exercises could help. You could even find a psychologist at your university.
Good luck with study and with everything