Going back to school after a week missed?

It sounds like you have been going through a lot lately. It is important to understand that the thoughts that you think dictate the feelings that you feel. If you think negative or sad thoughts, your brain releases chemicals that make you feel sad. If you think positive thoughts, your brain releases chemicals that make you feel happy and calm. To overcome depression, you must change your thought patterns, otherwise known as using “thought stopping techniques.”
One way to do this is to carry around a small notebook and write down every negative or sad thought that you have. This will help you to see how many of your thoughts are negative. The average person thinks a negative thought every two minutes! Then, after writing down the negative or sad thought, immediately write down or say out loud a positive thought. Come up with a list of positive thoughts that you can tell yourself: “I’m OK.” “Today is a good day because I am choosing that it will be.” “I am strong.” “This too will pass, and I will get through this.”
Additionally, check out the following 99 coping skills, which can help you to refocus your thoughts on positive things: http://www.yourlifeyourvoice.org/DiscoverIt/Articles/Pages/99-Coping-Skills.aspx
Sometimes it can help to talk to someone and tell them about what you are going through. Please know that there are people who can and will help you with what you are going through. You may want to consider talking with a counselor at a hotline. There are many hotlines that are 24/7 and will work with you and situations like yours. Some even have email and/or chat if you would prefer. Hopefully, you will continue to reach out! Sincerely, KO, Counselor

Yea. I am also going back to school today after one week. Because I was sick. I think it is a coincidence.

Either tell them about your depression, or if you dont think the teachers will accept that, just say youve been throwing up really badly