Dear Sorcha:
When I had to get a rather worrisom oporation on my throat, it struck me that to the doctor, this was as mundain as a bus driver doing his rounds, I was going through this once, he did it every day... so, like not thinking about how fast the subway train was going, you just sit back and take the ride for granted, just let them give you all those drugs that Cheech and Chong would pay good money for... and let everyone else do the worring... which we will, but you should not...
Cheers and all the best
Larry