Sorry to see the problems you are having Xylophone.
We have had our share of mobility problems too and it definitely gives you cause to consider whether Patong is the best place to be.
Are in New Zealand for the past two weeks and already finding it cold (8C as I write this) and boring.
Stuck here for treatment for at least another 8 weeks and it is certainly not a long term option for us.
We will be happy when we get back to Patong.
The thing with Patong is there is such a variety of things that are interesting, challenging and even still exciting (if you find it still exciting to look at attractive women who dress to be looked at).
A walk at 6am along the beach is equal to anywhere in the world.
Supermarketing, restaurants and cheap eats are available easily.
We eat at many restaurants around the island and because of my wife's limited mobility choose places we can park close to the venue. Lots of choice of so many different tastes.
A short walk down to Soi Sansabai and you can have a ringside seat and a good meal at Summer Breeze or The Yorkshire and others, to a constant parade of, dare I say it, the good bad and the ugly up and down the street for as long as you like.
Having spent periods of time living in places like Ko Khaeo and Cherngtalay, we just find them too quiet for our liking. Nice to visit but not to stay long term.
Patong ain't what it used to be, but it is still pretty darn good.