Morning sickness query

[gandering]

I feel like I should know the answer, as this is my second pregnancy but are there levels/grades of sickness. When does it become hyperemesis? I've been sick constantly over past two months and I'm still first trimester. Some days are so bad I actually couldn't sit up with out waves of nausea/dizziness.
If I have a good day, and this means only vomiting in the morning, and try to do my job as normal, I pay for it in the evening and next day by being completely wiped with endless vomiting. I'm frickin shattered.