Severe anxiety/sadness- 15 weeks

Hi everyone-I am 15 weeks and at the beginning of my pregnancy I felt awful emotionally and physically. I have a dx of anxiety for years (not on meds and decided not to take meds during pregnancy) I have been starting to feel much better but now the anxiety is back. I have a very high stress job (I work in the helping professions) and I have not been able to function today due to thinking about work. Anyone have sudden emotional issues come back like this? And does anyone have any suggestions? Thank you!