Lui,
Please read my post under caregivers burnout. You are pushing yourself to the breaking point. All these symptoms you are telling me - problems with period, feeling like you are in a dream, ice pick headaches, thoughts of suicide, mental breakdown -all of these are warning signs. Your body is telling you that your doing too much. I know it is hard to put your life and dreams on hold but you must if you want a future. I had all the symptoms you are describing right before I totally broke. I ignored them, used medication to cover them, pushed myself too hard. If you read my post under caregivers burnout you will see the consequences of that bad decision.
I think you have hope for your future and your dreams if you get the rest and care you need now. In my opinion you need to get out of school for now and go home to your family. Rest until you are recovered, however long that may take. Then resume your life a little at a time so you know what you can and cannot handle. Trust me there are many people in the world that give people second chances and are sympathetic to health reasons. You will be able to pick right back up where you left off to take time out for your health.
I feel for you. I have been there (different situation) but still the same. Please listen to what I am saying to you. You can take time out to recover, you must.
Brain