Get well soon Olan
Blimey, hope that such significant measures actually deal with the problem.
Ugh, I do hope things improve for you!
Thatâll teach me to wonder where you were, if you see what I mean 
Wishing you a speedy recovery.
Hope that helps, good luck
I hope you have a quick recovery Olan
Feckinâ attention seekers 
I hope this leads to significant improvements Olan.
Fingers crossed things start to improve for you mate.
All the best, Ălan
Bit of a radical weight loss program that.
Hope youâre soon back on the mend Olan.
Hope you are back home and recovering soon Olan.
speedy recovery Olan
Best of luck with your recovery, Olan.
Best Wishes Olan! Get well !
Yes, speedy recovery!
Well that sounds like a shit week, letâs hope you have some better ones soon.
Best wishes Olan. 
Hope they got it all, and this will be the end of it.
All the best.
Sounds tough. Hope everything goes well in the recovery.
All of the above in respect of getting well soon etc., but to add some hopefully appropriate levels of inappropriateness:
a) what is Alan going to be like without a means of production of bile? and
b) presumably the surgeon gets a fairly regular flow of lines about fava beans and chianti in these situationsâŚ