Forcast??

If anyone can invent something where u know when u gonna get sick or etc.. pls do so now!! 'coz i can't predict when my cough get worsen & the best part was its within mins.. i tried to rest alittle at home before i went out but the cough was quite bad & so came my super last min sms to inform others tat i'm not able to make it.. wat i got?? i got screwed in the air which i predicted.. yeah!! get it.. i know i deserved tat.. if tat ticket or money wasted weight more than me.. i guess i juz need to f*** off frm u all.. i rather waste the money than to cough throughout the whole show not enjoying & disturbing others.. definitely i'm at fault but pls understand wat ppl are going thru.. illness is not sumthg we can predict of..