I'm back at home :), and in fact I have been since Saturday. I was only in the hospital for two nights  - my temperature returned to normal without the need for antibiotics (Hurrah for my new immune system and my friendly new T-cells!)   
 
And Re: my comments about Starbucks - I wasn't having a coffee - off limits for the next few months - just taking advantage of their internet terminals...
 
A couple of you have asked for more details of why I needed to go in:

As part of my normal routine I check my temperature twice daily - and more often if it is higher than normal or I feel as if it might be. Normal is between around 36.5 to 37.5. If I go over 38.0 I need to call in to the BMT unit. They tell me to check myself hourly and come to the hospital if it continues to rise. 

On Thursday afternoon I hit 38.0, then up to 38.2, 38.3. I lay and rested for a couple of hours but that didn't bring it down (though I felt OK).  Evening ferries off Lamma are 9.30, 10.30, and the last one is 11.30pm.    Once I'd hit 38.4 and made the decision to go in it made sense to take the first available ferry - though it was in fact the 10.30 rather than the 9.30 as I said in my previous post.
 
The standard practice for anyone admitted via the A&E process is to keep them in for a minimum of 24 hours which in my case meant two nights in a vastly overcrowded ward.  My temp peaked at 38.6 around 3am - but had subsided to under 38 by the middle of Friday morning. Then they released me, without antibiotics (hooray again) on Saturday morning. 

In general my temp has been above it's normal range for the past 2 weeks or so - hovering between 37.0 and 37.8 - which is probably my immune system kicking in and reacting to everything it finds around it (i.e. me...).  That in turn is probably due to the lessening doses of steroids I'm taking.
 
My various cell counts have also been dropping slowly but surely over the past couple of weeks which concerned me if not the docs - but Monday's blood test showed my neutrophils back from 1.6 to 1.8 (normal 3 - 10, danger level below 1.0)
So things are back to normal, though my throat is still scratchy, and my first scare proved to be less of a scare than it might have been