Head breaker

The title sounded a bit too strong, but it was exactly how i felt yesterday evening.
I had a hard time concentrating on my test i had to take before that, my mind just keep going to blanks.. And i should have heed the sign and go home, but no, i was still my usual self, i tried to shake it off and went ahead to meet a client at bedok...
The headache kept getting worse and naturally i had started to doubt my wisdom of coming down to meet him, i should not have really! And the better thing to do is to cancell another appointment at AMK after that, and by this time i had realised i am in trouble, it was already too late. The heavy trafic home did not help my situation, i was feeling so sick that i had thoughts of pulling to the side and rest... i thought of calling for help, i thought of nerissa, i thought of calling mr phey...
but i kept holding on, i knew if i dun get home to lie down, then the next thing will hapen probably will be the ambulance coming for me...
Never in my memory had i experience a headache that's so excruciating, so tormenting, it was almost like trying to split my head..
I had managed to reach home myself at about 8pm, i was feeling nauseas, and a little feverish; i probably dropped dead on my bed for an hour or so....
This is truly a scary experience! My head still feel a bit drowsy. I am not sure if all these recent hipcups could be due to the chemo drug... it is quite likely i supposed.. which means i have probably reached the dosage limit... or could it be other causes? like maybe i should still wait a bit more to even work a little?
sigh... it is really hectic to do all the guessings.. at times i would wonder that if i am medically educated, i would not be having such a difficult time here.