What is wrong with me?

I have a really bad pain in the right hand side of my throat and jaw. I first noticed it coming on slowly after coming back from a party two nights ago, the pain is very sharp now and constant, I think I have a swollen gland but my gum is also swollen and very sensitive. Also for the past 6 months or so I have been experiencing cold-like symptoms off and on but it hasn't manifested into a proper cold or flu thus far.. just occasional sore throat and coughing. I'm worried now about this issue, I'd like to go to a doctor but I can't afford to at the moment unless it's really urgent. If anyone has experienced similar pains please let me know what you think it might be. Thank you