Headache & back pain that won’t go away & trouble breathing

All day today I’ve had a headache & a lower back ache that just won’t go away no matter what I do. I’ve been really out of breath today as well. I have a home blood pressure cuff & have checked my blood pressure throughout the day & it’s been in the normal range, heart rate has been normal for me as well. I’m 31 weeks. Is this normal?