Please help- I'm really scared!!

Amanda
So, I'm 11 weeks and 6 days pregnant (almost 12 weeks), and I have been feeling sick all day. I threw up in the morning a bit, and when I did, I got suuuper sweaty like I was in a sauna. And then, I got freezing cold. I've felt like that for most of the day- warm, and then really cold. My temperature is 97.3. My body feels extremely tired, achy, and sore. I took a bath in Epsom salts but it didn't help. I drank tea, have been trying to eat, but I still feel so weak and dizzy. My nose is runny and I'm sneezing g frequently. I'm so scared for the baby, so please help! :( what can I do???