So a couple time a week I feel cold when I'm not active

I'm active for about 5 hours a day 6 days a week.

Normally I'm warm due to summer and the nights were warmer.

But now I get cold I don't have a fever and I can get warm if I take a shower when I'm cold but can't figure out why I'm cold during my non active times and being at home.

My boyfriend is always hot so I turn on the heat and he looks at me like I'm crazy.

I see my doctor on the 24th and getting some blood work done and I plan on talking to her about this. Since it just started now that it's chilly outside.

This is my second pregnancy and I always ask what's going on when I have different symptoms then I did with my son.

Help me please I just want to make sure I'm not losing my mind