Good morning plz am 12wks and 5days gone but starting since on Sunday …

Good morning plz am 12wks and 5days gone but starting since on Sunday I have been having serious cold and extremely headache that I can feel my head pounding with severe stooling that my stomach is paining me and I wud be weak too plz is this normal for a 12wks and 5days pregnancy I have not started antinatal wud start by next month