Definitely as others say if they have a negative effect on your everyday life. Mine got so bad that they disturbed my sleep and during the day left me drenched. I couldn't go on like it.
With regards to summer, far far worse in some ways, but at least if you can get in the shade or have doors and windows blowing air through (or my newly installed aircon!!).
Remember last September we had that really boiling hot period? We were in Central London for a conference I an old building with no aircon and it was murder. And that is on HRT.
So keep a diary and see how much you are being affected. In my experience the flushes got more frequent and 'hotter'. I'd walk the dog in a vest top in winter! If you start to struggle, it is definitely worth the call to GP. But in the meantime read as much as you can here so you learn what you might need and also how to insist you get what you need and not brushed off by your GP. Some are OK, some are useless. Maybe consider starting the ball rolling now in case things get worse and if they don't, wonderful.