I have a feeling this is going to be a looooooong post... 
Firstly, minty big hugs. It's perfectly OK to be posting about you! I'm sorry your boss still doesn't get it. Have you told him that you cannot book the training right now? You never know, you may be someone who sails through treatment and wants to do the training, but you may also be feeling grim and not wanting any extra strain.
I'm rubbish at knowing what to say when people are down so will just send you best wishes 
Also sorry that the Macmillan site worried you
I should have mentioned that it is quite detailed. But if you are going to look on the Internet for information then that is the place to go as their information is accurate and relatively up to date, whereas there are all sorts of sites out there sharing out of date or dangerous information, suggesting wacky alternatives to conventional treatment etc. so it is better to just look at trustworthy websites. There are some breast cancer specific ones I think but I don't know them so perhaps someone else can suggest.
Chemo is horrible, but it is doable. We have all got through it one way or another. Many have managed to work part time, some even full time. I was very ill during mine, but the time actually went quite quickly and my overwhelming feeling was of boredom rather than misery.
smee I totally agree. This thread is immensely valuable and is a lifeline to many. It needs to continue that way so that more can benefit. It is both happy and sad that there are so many of us in the Tamoxigang now.
really I will echo pigeon's post about autism, as she has said what I wanted much more succinctly. I don't know much about autism, only what I have learnt from amber and you may know more about it as you work with children.
Someone with autism is highly moral and accurate. They may come across as socially clumsy as they communicate only in facts. They will always be truthful and accurate, without dressing anything up in the way that many of us do. Sometimes that may come across as bluntness, but it will never be deliberately rudeness or snideness.
amber's amazing accuracy and factualness have been of real benefit to many of us on the thread, as she has shared lots of useful and reassuring information. Some people have even been able to suggest new treatments to their teams, thanks to amber's research. You probably remember how much research she did when you had your brain bleed during chemo. I for one am very grateful for all the time and energy that amber has committed to this thread over the years.
Unfortunately, for amber, the same focus on detail and fact means that when something is inaccurate or doesn't make sense, it can cause extreme anxiety, which is perhaps what you have interpreted as doubt or snideness.
Please refrain from making any further personal comments about amber; by all means be as rude to me as you like. Most of us can just shrug these things off, but for people with some types of autism, a personal attack of any kind can cause an "electric shock" in their brain, which causes them actual physical pain. It also makes this thread an unsafe place for amber which means she may not be able to return and share research in future, which would be a great loss for us all.
pigeons that is a good idea, although I'm not sure my info will be of much use to anyone, I will jump on the bandwagon to get things moving 
Diagnosed 26th October 2012, aged 21, Stage 3c bowel cancer, grade 2, 4/22 nodes affected. Pan-proctocolectomy with ileoanal pouch anastomosis. 8 cycles of XELOX (capecitabine and oxaliplatin) although technically three of the eight were just XEL. Finished chemo in July 2013. Clear CT in June 2014.
We've just had a massive storm here, lots of thunder and lightning and very heavy rain. Rather refreshing :)