Yes, OCD is an anxiety disorder, but I don't think to have anxiety in general...not pathological, at least. Though I'm often anxious for something that don't cause so much anxiety to other people.
However, I'm thinking that maybe yes, this problem could really be due to my stress for the exams...I actually very stressed this time, because I'm a bit late. Hope that when this period finishes I'll get better.
Thanks for answering my dear friend Hope that you are well too