Hello, I am 32 female 190 pounds with allergies, CHF, and mitral regurgitation. I have been have jaw pain for about 2 and weeks now..I have been to PCP told her about it and she told me to see a dentist...just so happen i had a follow up with my cardiologist about my CHF and mitral regurgitation...i told him about it and he did an EKG and it came back normal...so i went and seen my dentist and he took x-rays and did the test on my teeth and he said it wasn't a toothache....just past Monday afternoon i was experiencing SOB, chest tightness, and feeling sick to my stomach. So I left my job and went to ER and they kept me for 24 hours running the blood tests and ekgs for heart attack and it came back negative. However, I am still having moderate to severe jaw pain on my lower left side...none of my doctors I have been to doesn't know what causing my jaw pain..