Did I overheat?

Dr
Im 33 weeks pregnant and I took a hot shower, I raised my arm to shave my pits and my pulse in my neck felt very obvious all the sudden. Like it was heavy. I shaved the other arm
And started to feel dizzy so I rinsed off for another minute or two and got out. I wasn't dizzy anymore at that point, then I went to my room and put on pajamas. I felt unstable as I put my head down to wrap my hair up, then I was better again. Then I felt nauseated as I was wiping the mascara off my cheeks, I went to my bed and sat down for a minute and now I feel heavy and sleepy and somewhat nauseated.
Are these signs of overheating or what? Should I call my advice nurse or just tough it out?