fast pulse rate and headache

Hi mga mamsh, sino nakaranas fast pulse rate and yung headache na parang hangover. My pulse rate is 100, 130/90 bp, 3 days headache. Magpapacheck up naman ako tom sa OB sabi nya kasi not normal. Gusto ko lang malaman sino nakaranas and anong ginawa. Btw im 20w4d preggy. Thanks ?