Hyperemesis

Please any advice would be nice. I've been hospitalised three times to be given fluid through an IV, the last time took 4 attempts to get the needle in as my veins kept bursting due to dehydration. I have a 6 year old who is really demanding and I can literally do nothing with him.  I've not one bit of energy and a boyfriend that keeps telling me to get on with it. He is not supportive at all. I don't think I can go on like this anymore :(