Are you in the first or second year? If its the first, it only been one term so you might be able to change subject...the first term (especially if its your first year) wouldn't have been that intensive, but your teachers may feel that it would take too much to catch up. I know people who switched onto the the media course two terms in, so you could conceivably manage.
But ew to physics and maths. I can't do anything with numbers so stayed well clear.
I blame your thread.