Medical Leave?

I think what I’m looking for would be considered medical leave but I’m unsure on how to go about it. Recently I’ve run into large health issues that are now largely impacting my ability to be able to complete school work. I’m an Ecampus student and even with online access it’s still piling up. I was wondering who I have to contact about stopping classes. Now I know we’re past our drop classes date and Oct. 20th you can drop and get 50% tuition back. I want to know if I have to contact someone and send them my medical proof of what’s happening. I don’t even care if i have to take a W on my transcript. I’ve reached out to DAS and haven’t heard anything yet so maybe they’ll help. I just want to know if anyone has also had to withdraw just for the quarter due to medical issues. I’m hoping just to leave for the fall quarter and return come winter but that depends on my health. Thank you!