maybe try to lose weight
A poster on a different thread wrote about her thyroid condition yesterday. It happened to a friend of mine too. Both were told to go away by doctors. Repeatedly told it was nothing or it was psychological. My friend eventually had a private diagnosis. The poster here was diagnosed when she moved to America. As a consequence of their delayed diagnoses both gained weight. Caused by the condition.
Other people gain weight whilst waiting months for operations to improve their mobility. Then there's MH reasons. Be it comfort eating (as deserving of help and empathy as anorexia) or side effects of psychiatric medication. You could say that sometimes it is the broken NHS that is the cause of many people's obesity.
Add in the strong link to poverty - many living without proper cooking facilities and reliant on (often less healthy processed) food from food banks. And stress. It's an acknowledged contributor to obesity.
Saucery unfortunately I've seen posts Othering all the more at risk groups. Particularly the elderly (and many think elderly starts at 40!). It's very unpleasant whoever is being Othered but I'd say it says a lot more about the person doing the Othering than anything else.
No point having a gallbladder or any other operation now only to end up with Covid. It's terrible how the pandemic is impacting on us all, particularly the vulnerable and those waiting for treatment. But we can't magic it away. All we can do is mitigate the damage.