All day vomiting

i’m 28 weeks and still vomitting, since i was 13 weeks. from 13 weeks to 20 weeks i vomitted 5-7 times per day, but i was not dehydrated thus gynae ruled out hG. checked for thyroid function, it was subclinical hyperthyroidism. but it was back to normal on my next check up. famotidine helps me, i pop it before every meal.