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im bout 3 4 months pregnant. i have had a lot of weird different pains & a constant headache that hasnt gone away in over a week,im afraid to go to my docter,i have my antenatal scan at the end of this month.is this normal??im only 19,is this because im so young??i also have no appetite at all,i was in hospital for a few weeks on and off because i was so sick i couldn't even keep water down luckily that passed but now i just feel really down wrried and out of sorts with myself,i dont know what to do?