Hello. I have had a severe headache across my forehead and squeezing the back of my head since weekend. When I stand my heart pounds snd this pounds in my head. I get hot, although I don't gave a temperature. I feel sick sometimes too, imparticular this morning when I got up. I slept the majority of yesterday too and dont have much energy. I am 34, 5ft 9 and 10 1/2 stone , I work out regular too.