28 weeks pregnant & flu like body aches?

I’m 28 weeks and 2 days and my day started off normal but as the day went on my body just started getting achy like that feeling you would get before you get the flu. At first I thought it was just back pain but now I’m starting to feel like my whole body just aches my arms legs and my back. I’m starting to get sensitive to cold things that touch me as well. This may be a dumb question and it seems like flu symptoms to me or how I feel before I get sick but I’m just wondering if anyone else has experienced this during pregnancy and if it’s pregnancy related or if I’m really getting the flu? Any advice would really help I’m feeling really crappy 😕