So you’re a little older, on a fixed income, don’t have a support system nearby, don’t have a place you can stay that has dedicated bathroom facilities or even room to stand up indoors, and you just had a not-insignificant surgery that comes with, at a minimum, laparoscopic incisions, and could significantly affect the way your body processes its diet.
You may well be doing fine, but I’m not calling out either the doctor or the social worker here. Pushing you a little and making you insist you’re happy was a reasonable call.
Well, I’m happy to have been wrong about the support system. Heal up, and maybe view the annoyance as one of the few downsides of your lifestyle. What’s offputting to you may save someone else’s life. Best of luck!