11 weeks and still really sick

Marbis
Hey ladies is any of you at 11 weeks and feel like the sickness increased? I vomit various times through out the day and even if I eat something I throw it back up and what's even worse my whole inside of my mouth is burned because I throw up alot of acid it's horrible is anyone else the same? I've spoken to my midwife gave me medicine it only helped for 2 days and then my body got immune to it that it's no good any more