hi, basically... i suffered from serious carbon monoxide poisoning along with my mother when she was pregnant with me. i was born severely underweight and my mum was given drugs in order to force her to give birth to me to survive. I was roughly 5Ibs. then as I was about 11, i discovered i needed glasses, and this has led to my sight getting worse and worse, and now im nearly 17, and its pretty shite. the opticians told me on three occasions that the arteries and veins int he back of my arms were tiny, incredibly small. i'd also started the frequent passing out stages and being always dizzy once standing up from since I was about 12, till now. it tends to go up and down. could that be a side effect of the carbon monoxide thing? my dads also got severe bowel cancer in his family... i dont know if thats relevant or not, but basically he gets this aswell.. basically, wehnever we go to the toilet, number 2 wise!!!!, if we've got bad stomachs or we're ill, we pass out while going, and its pretty god damn painful and stressing. thats another issue, i went to the doctors and they told me that it could be caused by the bowels pressure squashing nerves or vessels supplying the brain with oxygen and shizz.. thats hypoxia. i am rather underweight, and in general im average heghted but they skinny and light... any advice or stuff, or general info that can help me? cheers :) I MEANT VEINS IN THE BACK OF MY EYES! not arms xD hahaa