Should I drop my sorority?

[adpiucf]

Agreed you need to contact the president to determine your status. If you're an alumna, you are no longer a member of the chapter. If you were inactive while you were out for medical treatment and studying abroad, your time is probably up and you owe dues... which means you may have/could have already been terminated as a member.

But, regardless, move on and get better. I don't think the sorority is a good fit for you.

[MysticCat]

Originally Posted by adpiucf

If you're an alumna, you are no longer a member of the chapter.

Picking nits, I know, but in some groups being an alumnus or alumna and a member of the chapter are not mutually exclusive. The distinction is between being an alumnus/a member of the chapter and an active or collegiate member of the chapter.

Which again just underscores why the answer should be gotten from the HQ of the sorority in question, not from people on the internet who don't know the specifics of the OP's status or the policies of the sorority in question.