I'm unsure exactly but roughly somewhere between 10/13 weeks pregnant and suffering morning sickness really really bad I've gotten tablets from my GP but they're not doing the job now, even after doubling the dosage! Everytime I eat something I instantly vomit it straight back up, all I can do is sip water but over the past 2 days even that, after a while is making me vomit but when there's no food there its a very sharp taste that hurts my throat usually yellow, but today it was dark green/black! Is this anything to worry about?