We all have times in life when face uncertainty of various types, and how we deal with it is the important part. Many on here who actually have diagnosed medical problems have scans and checks all the time, its stressful but the wait simply can't be avoided. Nobody can make the blood test come sooner I'm afraid and by the sound of it they are going to do a majorly quick turn-around on giving you your results. The doctor said he 'expects it to have come back up' but instead of that you are reading into it that because he didn't say you didn't have leukaemia, then he thinks you might have it.What else can he do but offer you diazepam ? Maybe your own doctor, and I don't mean this rudely, is just so used to your HA now that he knows the reassurance will make no difference to you.
I don't know what else to say Cattia to be honest.