Sorry for the late replay as I just recently join this forum to me better late then never to provide the information needed. Since you have posted this question 11 months & 1 week ago, this have been a Rabbit year which lasted anthill February 2012, so from February 2011 to February 2012 5 yellow was in the east , 5 yellow is total loss energy and when you sleep with your head pointed to this bad energy your health will suffer and all kinds of bad luck can follow I assume you have been sleeping with your head pointed to this directions for some time now. Sickness star was residing in the south as well so the energy was at your bedroom door so it was also not good to point your head to the South.
One should never point their head when sleeping to direction of the bad star locations.
Since we are now at Dragon year starting from February 4 2012 to February 4 2013 , the bad energy of 5 yellow have moved to Southeast and sickness star have moved to North , so placing remedies in the front door is important since your front door is facing North. Also make sure your bedroom is not in the Southeast of the apartment and if it is the cures needs to be placed there so weaken 5 yellow.
Mirror facing the bed is not a good idea if possible remove them from the bedroom or cover them at night before you go to sleep.
Hopefully you know your kua number and you point your head to one of your good directions and if you don't know you Kua number please provide your birthday so as to help you further with your health problem.
Take care