Hi Gabby,
You are certainly not alone. I suffer from the same things, hot, cold, hot,cold, hot , cold etc. But when I am cold, I am freezing like I am in antartica. It is all Peri related, and if I am not warm I am cold, seldom am I somewhere like normal, so just relax and keep warm when you get those chills. I sometimes get in the steaming hot shower when I am at home and get warm to the bones. There are times when even central heating will not warm me, and my thyroid function bloodwork has just come back AAA normal, so apart from having your thyroid checked, it is certainly 'my' normal in Peri.
We just got to love this peri deal we have!
Hugs.
Viktoria