Hi @Debbyx,
As other people have already mentioned, this GP is way out of line to offer you antidepressants as a first option. If you haven't had any of these symptoms until the last 12 months, I would agree that it may not be menopause, but he should be ordering some blood tests to get to the bottom of this before offering any treatment. There are any number of causes for the symptoms you've described, not least simple vitamin and nutritional deficiencies such as Vits D, B12 and also iron.
I'd personally be asking for investigations first, but I know how hard this can be arguing against them when you're feeling far from your best. Can you take someone else to your appointment as support?