huh? you are graded Temp PES E for a reason... a health reason...
so what's your health problem that is serious enough to warrant you a E grade?
e.g. heart problem detected by ECG? lung problem detected by x-ray? blood problem? internal organs problem? some abnormal growths somewhere?
you can personally go down to CMPB, walk straight to the counter, then bang slam your fist on the table and say, 'i want to speak to your manager! i'm a son of some big shot here in Singapore! i demand you to up my PES no matter what so ever! and i demand it NOW!'
last but not least, if you got daring balls enough, you can email our dear uncle Dr Ng @ www.sgdi.gov.sg