I receive food stamps but I lost my job can I resubmit my income to qualify for more?

I don't see why not.

I am on hold with the department of human services now. Im just wondering if I should redo an application online or since I already receive food stamps if there is another avenue that I must take.

Just contact your case manager and he/she will tell you exactly what you should do. I went through the same thing and had to fill out the application again with the current income.