What's wrong with my mouth!?

Recently I have gotten swollen red gums and the doctor said it was just from my throat infection I have recently gotten, but I'm still worried. I have one of those white bumps on the tip of my tongue (the wivestale being you get them from telling a lie), I have now got a big cold sore on my lip and bad breath. My mouth is extremely sore and painful, I can hardly talk and it realllllyyy hurts to eat. I am reeeaaallly worried!! please help?!!?!!