I am at an all time low

It's surprising how sneakily little extra it takes to gain quite a noticeable amount of weight.

To gain 7kg in 4 years only requires in theory eating on average 37 calories more daily than one burns. That kind of weight creep is pretty easy to have happen, either from eating slightly more calories, or from reducing activity slightly, or a combination. It's pretty common to reduce activity as we age (without noticing), and a bunch of us reduced it extra much during the recent pandemic.

Gaining 14 kg in 9 months is more like eating 400 calories more daily than one burns. That's a little more dramatic, but still pretty easy to do: It amounts the equivalent of a can of soda pop and a candy bar daily, basically; but it could also happen from eating an especially high calorie meal a couple of times a week.

Losing weight in menopause is possible. I'm not the only one who's done it.

The most common mistake, IMO, is that people decide to go hard to lose weight fast, and that's hard to sustain long enough to lose a meaningful total amount of weight. Slow and steady wins this race, and misery is pretty much optional. There's no need to adopt difficult, restrictive rules about food choices, or do punitively intense exercise. Figure out how to eat a manageable amount less in calorie terms, and move somewhat more in fun (or at least tolerable/practical) ways . . . it adds up.

The surprising arithmetic works in reverse, too. :flowerforyou:

IME, the rewards are worth the effort. I'm cheering for you to succeed!