Unable to say " Present " in class

Unable to say " Present " in class This is just weird but in my first year of uni I was able to say it without any problem and fluently then I dont know what happened and suddenly by 3rd semester I have a hard time saying it. :/ Sometimes I'm able to say it, sometimes not - really frustrating and it will affect my marks obviously as low attendence (even tho I do come, but not able to mark myself present). Extremely frustrating and Idk what just happened.