How do I handle unexpected expenses with a hard money loan

[Raeshal Solomon]

Hey I'm in the process of flipping my first house and I have a hard money lender loan. I did not realize that you don't get your draw until after a part of your project is completed for example you get your demo draw (money) after the house has been demoed. 

My first question is is that common practice for hard money lender to not pay you until after a job has been done?

After we completed demo we had some unexpected expenses.  I'm having to replace a whole wall because of water and termite damage none of this was in my rehab budget. So I paid for it out of my pocket however it's making it difficult to move on to the next part.

Does anyone have any suggestions on what I could or should do?  My general contractor is being very reasonable considering the circumstances.