Bad headaches

I've had a throbbing awful headache the last 2 days. I've had no appetite, but tried to at least force down a little. I've been able to drink flavored water. It's dull all day, but at night it starts to throb so bad that I can't even stand up. I got so dizzy from th throbbing I actually ran into the wall. It got so bad tonight that I was crying from the pressure. I broke down and took a Tylenol because I couldn't handle the pain. Immediately after that, I started puking my brains up several several times. Now it's 3 am and I feel so bad that I can't sleep. Is anyone going through this? Should I consult my doctor? I don't know what to do and I don't feel like I have anyone to talk to or ask.