I randomly got sick this morning?!

So this morning I woke around 10:30 with an extremely painful throbbing headache on only the right side of my head. I felt really awful, so I took 2 advil and tried watching TV and going on the computer, but I felt extremely nauseous. I tried to close my eyes and get some more sleep, but I felt tingling in my jaw and ran to the bathroom and threw up twice. I felt better after, and my headache instantly was better. I started watching TV and I felt alright. My sister got me some ginger-ale, and I tried sipping some, but I ended running to the bathroom and throwing up three times until there was nothing in my stomach. (Sorry for the details). After throwing up, I felt exceptionally better and I felt completely normal. This was at around 1:30. The rest of the day and to this point I've been feeling great, and I had a lot to eat, even some raw cookie dough (Not smart, I know). Anyways, even though I'm relieved I'm feeling better, I'm concerned because I don't know what this could have been. I can't remember the last time I had a headache, when I get sick I don't get headaches. Also, I have had this cough for a little and when I cough I can feel the pain on the right side of my head, and it's extremely painful. The only thing I remember confusing me was this dream that I had last night where I kept repeatedly plugging and unplugging the cords to my friends medical machine. My best-friend is in the hospital and I had spent 8 hours with him on thursday night, and I actually had to unplug and plug his medical cart in and out. an What should I do? Should I be concerned about this? I'm 14.