No money, no food.

Hey, I am in need of advice; I have started a new job and have not been paid for two weeks. I have had very little food this last week, just one bowl of rice cooked in vegetable stock, and I have now run out. I live in the UK and know I could cope for a couple of days without food, but I am worried as I have epilepsy and I do not want to lose this job because I had a seizure from not eating or from the stress; any advice would be great.