WOW @3CustardCreams
I am so grateful that you are not my doctor!!!
My doctor did observe me putting on weight, slowly, over 15 years. She did mention it when I came in for check ups (which was not regularly, I would generally only go to the doctors once every couple of years for a check up), listen to me, advise me and then when I eventually decided (of my own free will) that I needed support to manage my weight, she proposed several options together which I then discussed with my family. She listened to my concerns, and my DH's.
When my weight loss plateaued, or I became disheartened (which does happen!) she encouraged me to keep going.
She then recommended me to an endocrinologist, and this endocrinologist gave me a thorough check up, sent me to a dietician, and from there we started the weight loss jabs.
From me asking for support, to getting the injections, took 10 months.
Granted, I am not in the UK, but here you cannot get them without a prescription, (which I do agree with) and thankfully for me, my health insurance does cover them. The approach to health is focused on preventative here rather than treatment.
I can't imagine, if after all that soul searching and feeling very low, a doctor didn't see the real me and told me it was all about vanity.