Hi pastie supper, sorry for the late reply, not been on the forum for a while.
wrensong you mentioned a lot, could fasting during the day lead to night sweats?
I fast during the day then have an evening meal and something sweet after that. The reason for my fasting is that it's the only way I've found to slightly control my lifelong IBS pain which is caused in my case by a hereditary condition I was born with.
How difficult for you, that being the only way to help manage your IBS. I would have suggested making sure you eat regularly throughout the day, not going too long between meals, having a portion of lean protein with complex carbs at every meal, plenty of veg & some fresh fruit, healthy fats like oily fish & avocado, avoiding sugary foods & drinks & not eating a lot of fruit in one sitting. The protein, complex carbs & fibre help slow down digestion, keeping blood sugar more stable, as does eating regularly throughout the day.
I found I began to struggle with blood sugar control at the start of peri & had to change my way of eating for life. I was already eating plenty of complex carbs, veg & fruit, but was predominantly veggie (also for IBS) & found I needed to include more protein in the form of fish, lean meat, eggs, high protein natural yoghurt . . . as veggie protein sources like beans were not enough any more.
All I can suggest re the evening meal is to experiment with timing & content if you can. Eating a big meal too late could mean that a lot of heat is being generated from digesting it overnight. I found I had to shift main meal of the day from evening to lunchtime for that reason. Also, if you are having something sweet afterwards it's possible this is causing a sugar spike, followed by a crash, taking your blood sugar too low overnight. One of the horrible consequences of too low blood sugar is sweating, sometimes along with anxiety/panic, the shakes, nausea & feeling faint.
If you are losing a lot of fluid from the night sweats I wonder too if it's possible you're getting a bit dehydrated, as that won't help with temperature control.
Also, if you are going all day without eating, your metabolism will be slowing down to conserve energy while you are not taking in adequate calories & this could be contributing to cold sensitivity by day. That said, in the early years of the menopause transition I also used to get uncontrollable shakes so badly & for so long at a time, with the dodgy menopausal thermostat that it could get physically exhausting.
I shiver so violently I can get sore muscles from it
I hope you manage to find a way to improve things as the sweating sounds extreme & really troublesome.
Wx
P.S. sorry - kept coming back & adding to this as I thought of more I should have said!