Light headed tired and hot flashes???

Emily
So I wake up this morning at 5am my body deciding it was time. I waited a while to get out of bed my alarm was not to go off until 6 so I get ready and head to school but I have been tired light headed and feeling really hot all day to the point I left school early.  Which totally sucks I swear I miss everything in class that's important when I miss it. Thankfully I don't work today and I set up an appointment to see the doctor tomorrow just in case. Is this normal? I feel like butt! As if I have been up for days and sleep deprived which I haven't and I'm not. I'm only 6 weeks 6 days.