A not serious/mild Food Poisoning..

Today morning at around 1.30am, I can feel that my stomach was very pain. I "da bian" and vomited a few times.. So, mum go downstairs to the kitchen to get some water for me.. She also get me some medicine.. I hate that feeling.. My stomach was so pain and I cant do anything..(T.T) But I feel better after I took the medicine.. Now, my head gt abit headache.. Haiz.. Why must I get these penyakit when the school is opening a few more days later??