Training warm - up .....

Its been a while that i've not been to the highest peak in Singapore. Despite the stinging headache in my head, still proceed to our meeting place to meet up with d' kakeezs.About 4.30 p.m after everyone have gathered with some warm up , lets start the climb. As i'm not well, i tried not too push myself. For the start you can feel the tense in your muscle when the climb gets steeper but after awhile you get the hang of it.With sweat all over your face and body,it shows no need to spend your money for gym membership to exercise ..... after 45 mins all complete.But the headache is still there ......What the @*#% ......