My school issues are affecting my health?

It all started when I was told I was suspended for next tuesday (Today). This caused me to go into panic when I first heard those words. On the Friday before my meet with the principle I had been in last period study hall when I decided to sclean out my locker. The teacher we have study hall with allows 3 people at a time to their lockers to clean them. We take her recycling bin out into the hall to dispose of all loose papers or unwanted items and such. It was already a half hour into the study all when we did this and the recycling bins get cleaned out at 12 pm each day. It was about 2:30 so all of it would have to wait to be disposed of till the next day at 12 pm. I am an artist and I am indeed a "Furry" . For a commision I was requested to do a picture of someones character for a reference sheet. The result was a simple feminine body shape with some fur markings. The only thing on it that was slightly wrong for school was and . It was not posed in any pin up kinda thing or anything like that. Just a simple,arms out to show detail,legs together,kinda of thing. It had gotten mixed in with my school papers so I guess I had just not have been paying attention when packing my homework up for that night and scooped up ALL the papers on my desk at the time. I found it in my backpack and decided to get rid of it since I figured I could draw much better detailing and make it look better than it did. A few minutes later the recycling bin had gotten too full between the 3 of us emptying our trash into it so we kicked the papers down,making the drawing surely go deep to the bottom of the trash and be very crumbled. Skipping ahead to after the weekend i began to feel sick and i stayed home for 3 days after monday because i felt fine on monday until that night. On the day I got back I had gone about my day normally until 3rd period and then the teacher said the vice principle wanted to see me. I was confused as to why i would be called down like this so I spent my whole walk to the office scraping my mind for anything i did wrong,missing too many days of school,my haircolor (Its dyed with multiple colors which isnt in the handbook for a Catholic school),or something else? When I sat down he showed me the picture and my heart sank. The first thing he said was that the study hall teacher was NOT snooping and In my mind i asked myself "Then WHAT WAS she doing!?" and he began his speach on how these were not appropriate for school. My art style is very distinct and my artwork has been on hallway walls enough that people know me as "that artist girl". It was no error it was indeed mine. I explained to him how It was not supposed to be at school and he said it was still inappropriate. The teacher that found these pictures not only strongly dislikes me for multiple reasons (She,herself, is very very crooked by telling us not to go for our dreams and that if we do we will crash and live a poor life) but all students seem to have issues with her. Anyways, I recieved a one day suspension (Today) and no one will listen to me. Ontop of all this im getting 4 Fs on my report card that same day and that made my guardians furious ontop of all this. They must come to the school on Friday to see the picture and in a result the stress of all this is making me not notice that i dont eat for an entire day and when i do eat I feel very sick afterwards. I cant stop thinkig about this and im very very worried and my guardians say that ill probally have to change schools and im going to flunk and all these things. No one but my boyfriend is on my side. This is a catholic school. What should I do...? And no, I am in no way lying and I tried to be as descriptive as possible to ensure a good answer. Please help me. I need to know if this is harrment or something..?