I used to suffer terribly from panic attacks. Strange as it sounds, I took drama at college and it really helped!
If you're really concerned about your ability to do the presentation then let your tutors know, and they'll understand. If you're just nervous about doing it, then, well, join the club! I hate doing them, but I have to, so I just try and get on with it.
You'll usually be doing them in front of people you know anyway, so have no fear.
Like Alex Mann said, you need to relax. I've gone from never putting my hand up in class all the way through school to offering to do run a talk next weekend at an Open Day at my uni. It really is just a case of not over thinking it!
I hope things get better for you!