Prego sign?

if im preg id only be 6dpo. so i gave this lady a pedicure today and her feet reeked! so all day i have walking around still smelling her feet! its driving me nuts. i keep wishing my arms and putting lotion on but im still getting whiffs and it makes me sick to my stomach. ive had a slight throat throat twice today. once in the morning and once towards the afternoon 5ish. ive also have had heartburn! could these be very early signs of maybe my body changing or something? or should i just not worry about it? i havent had a period in about 3 months.