Something not right, has anyone felt like this can you help me understand?

Im 37 weeks pregnant and something isnt right. I sat down after eating and suddenly i felt loads of tension/pressure in my shoulders and neck, my head hurt and throbbed, i was really hot and when i touched my skin it was warm but my bf was like wtf youre boiling. My ears have got the similar tension/pressure and feel like i need to pop them. And my heart was pounding. I felt like i was having anxiety attack but im literally chilled out and wasnt even thinking about anything like that. I felt this weird doom feeling and bf kept saying lets ring doctor and was worried but i said no its stupid i cant ring and say hey i feel weird? I felt so off and i got a bit scared of the feeling and considered it at one point. I still feel that way as i type this. Can someone help me please?