So I have been with my BF for 3 years and we now live together his brother is getting married in 3 months and we r both invited to the wedding . I don't really have a realtaionship with the groom or bride as they r 36 and we r 21. Only see them at Christmas but u know as it is my BF brother it will be a big deal if I don't attend the wedding . But am scared of having a panic attack during the ceromony and running out the room and interrupting the wedding . There really I don't know how to say this in a nice way but up there a bit stuck up. I wouldn't understand .