missed periods

[coalfire]

regular. age 49.
had period september.
then a weird light one two weeks later.
and since then nothing.
plus hot waves which must be flushes.
Two and a half months without a period, out of the blue.
Is that it then, or is it possible they might come back.
confused.
(with the flushes go down if a period returns?).

It sounds like classic perimenopause.
You may find this sort of thing happens for several years! The average age of menopause in the UK is 51-52, which means 12 months without a period, but the wind down to that can take as much as 10 years. Most women find their periods peter out with either longer cycles, shorter cycles and lighter or heavier bleeding, over a few years. Mine petered out between age 52-53 with a couple of missed periods, then a run of normal ones, then missed about 4 more, then a light one, and that was it.
You may well find the flushes stop when you have a period because you will have higher oestrogen levels then if you are ovulating.