doctor?

Elizabeth
I am pretty sure I'm going to have to bring baby girl to the doctor tomorrow. 
She has had a cold for a few weeks that would come and go. Today she seemed perfectly fine but since 3pm has been having a rough time sleeping and not very interested in eating. She's pooped a few times since 3. One was mucusy and one was greenish with mucus. She has been moaning like she's in pain. I took her temp and she has a fever of 100. I took her out of crib and just held her. She stopped the moaning and fell asleep. 
Any thoughts?