Correct me if i'm wrong

Woke up early in the morning yesterday to accompany mum to the doctor for her checkup. Early in the morning she start screaming at me again cos i told her i'm going for my second blood donation in the afternoon. She n dad super unhappy about it saying i CANNOT donate so many times as donating blood too frequently will be bad for my health. They said that cos they have a friend who is a frequent donor but a few years back found out he got blood luekemia so he blame that he had been donating blood why did such a thing happen to him? So their conclusion is donating blood causes all these.... ('''-_-) *sigh* so mum make a big fuse over this cos i juz donated in december. I cannot gurantee its ok to donate so frequently lah but i still do believe its ok to do so. *sigh* wanted to donate blood to save ppl end up ganna ^&$($&^(&) ma chiam i did something wrong like that... anyway i didn't go lah cos dar dar's tummy not feeling well so we wait till his next off day then we go. (^_^) Shhhh... this time dun let mum know if not i think she'll chant at me again.... =Þ