Hi, last night i had fallen off the arm thing on my couch and on my way down the back of my head smashed my brothers head, i blacked out for almost 1 and a half minutes, when i woke up my head hurt an i had a headache as expected, but i didnt feelto bad so i stayed home and didnt go to the doctors, its now almost 24 hours later and im starting to feel like i am getting sick, is this from hitting my head or could it just be like the common stomach bug. And i have had 3 concussions already on file at the local urgent care center