We have no idea what you mean by "attacking" you and you leave us to guess. That won't do you any good. However, there is no general right to not be offended or subject to rude conduct. We also don't know the requirements of the school for classes or the internship, and whether you can reasonably do the work expected. From your post, they simply asked you for a doctors note to explain why you might not be meeting their requirements. That is not a reason to sue.
