What is wrong with my throat/singing voice?

I LOVE singing and right now singing isn't the same for me because my throat has this dry, cough feeling without any need to cough. It feels weird and my singing isn't the same. I don't think I'm sick. I haven't been sick lately but I don't think I'm getting sick. Any guesses? I don't know if this means anything but I have a few bumps on my arm/wrist/hand.
What is wrong with my throat/singing voice?
Post Opinion