Why does everyone seem to hate me, wherever I go today?

Starting in the morning, people I pass by (particularly women) would just give me weird looks, and stare over their side at me – without any apparent reason. Then, people at work are cold to me also. I admit I’m not the handsomest thing to look at, I am overweight. However, I do have feelings and I do try to do the right thing..Why am I hated so much today??