I am 42 female. I have been feeling extreme in my body temperature lately, moving from overly hot to overly cold moment by moment. Particularly when sleeping but during the day as well. I can't stay constant and comfortable. External factors that might be at play: extreme winter conditions or pressure systems this year (I live in Cleveland), I went off the pill in September (have been on since age 16 except for time of having one kid), my aunt's (hyper)thyroid died in her 50s so I worry about that being hereditary, have been working out with regularity since November and lost a few pounds (141-133, height 5'7"). No big deal (weather?) or cause for concern?